2022
Active Polarization Modulation of Terahertz Radiation Using Metamaterial/Graphene-Based Optoelectronic Devices. A.M Zaman, Y. Lu, N.W. Almond, O.J. Burton, J. Alexander-Webber, S. Hofmann, T. Mitchell, J.D.P. Griffiths, H.E. Beere, D.A. Ritchie and R. Degl’innocenti. In International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz Vol. 2022-August. doi.org/10.1109/IRMMW-THz50927.2022.9895720
New method of terahertz detection in 2D electron gases based on an in-plane photoelectric effect. W Michailow, P Spencer, N Almond, S Kindness, R Wallis, T Mitchell, R Degl’Innocenti, S Mikhailov, H Beere, and D Ritchie. International Conference on Molecular Beam Epitaxy, Sheffield, UK, 06 September 2022 (invited talk).
The in-plane photoelectric effect: A new quantum mechanism of detecting terahertz radiation in a two-dimensional electron system. W Michailow, P Spencer, N Almond, S Kindness, R Wallis, T Mitchell, R Degl’Innocenti, S Mikhailov, H Beere, and D Ritchie. 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Delft, The Netherlands, 28 Aug 2022. IEEE. https://doi.org/10.1109/IRMMW-THz50927.2022.9895868
Active terahertz modulator and slow light metamaterial devices with hybrid graphene-superconductor coupled split-ring resonator arrays. S Kalhor, S J Kindness, R Wallis, H E Beere, M Ghanaatshoar, R Degl’innocenti, M J Kelly, S Hofmann, H J Joyce, D A Ricthie, and K Delfanazari. In Progress in Electromagnetics Research Symposium Vol. 2022, April (pp. 967–971). http://doi.org/10.1109/PIERS55526.2022.9792980
THz aperture near-field spectroscopy of Dirac plasmons in topological insulator Bi2Se3. L L Hale, Z Wang, S Law, I Brener, and O Mitrofanov. 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Delft, The Netherlands, 28 Aug 2022. IEEE.
Sensitivity and noise in THz photoconductive metasurface detectors. L L Hale, H Jung, R Sarma, C T Harris, T S Luk, S J Addamane, J L Reno, O Mitrofanov, and I Brener. 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Delft, The Netherlands, 28 Aug 2022. IEEE.
Nonlinear terahertz generation in semiconductor metasurfaces. L L Hale, H Jung, S D Gennaro, J Briscoe, C T Harris, T S Luk, S J Addamane, J L Reno, I Brener, and O Mitrofanov. 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Delft, The Netherlands, 28 Aug 2022. IEEE.
Improving the efficiency of LT-GaAs photoconductive arrays on optically transparent substrates for high field THz Generation. C Kidd, M C Rosamond, L Chen, T B Gill, L H Li, E H Linfield, A G Davies, and J R Freeman. 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Delft, The Netherlands, 28 Aug 2022. IEEE.
Broadband nonlinear spectroscopy of hydrogen-like levels in Ge:As. T Gill, C Kidd, P Dean, A Burnett, A Dunn, S Pavlov, N Abrosimov, H Hubers, A H Linfield, A G Davies, J R Freeman. 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Delft, The Netherlands, 28 Aug 2022. IEEE.
Field-resolved high-order nonlinearities and ultrafast dynamics in a terahertz quantum cascade laser. J Riepl, J Raab, P Abajyan, H Nong, J R Freeman, L H Li, E H Linfield, A G Davies, A Wacker, T Albes, C Jirauschek, C Lange, S S Dhillon, and R Huber. IQCLSW 2022
Sub-cycle high-order nonlinearities in a free-running terahertz semiconductor laser. J Riepl, J Raab, P Abajyan, H Nong, J R Freeman, L H Li, E H Linfield, A G Davies, A Wacker, T Albes, C Jirauschek, C Lange, S S Dhillon, and R Huber. Ultrafast Phenomena 2022
Terahertz generation from GaAs metasurfaces: Role of surface nonlinearity. L Hale, H Jung, S Gennaro, J Briscoe, C T Harris, T S Luk, S Addamane, J Reno, I Brener, and O Mitrofanov. Oral Presentation CLEO 2022.
THz detectors with photoconductive metasurfaces operating at microwatt gate power levels. L Hale, C T Harris, T S Luk, S Addamane, J Reno, I Brener, and O Mitrofanov. Oral Presentation CLEO 2022.
The role of surface nonlinearity in terahertz generation from GaAs metasurfaces. L Hale, H Jung, S Gennaro, J Briscoe, C T Harris, T S Luk, S Addamane, J Reno, I Brener, and O Mitrofanov. Oral Presentation OTST 2022.
Ultra-low noise THz photoconductive metasurface detectors. L Hale, H Jung, C T Harris, T S Luk, S Addamane, J Reno, I Brener, and O Mitrofanov. Oral Presentation OTST 2022.
Investigating Bi2Se3 plasmons using terahertz near field spectroscopy. L Hale, Z Wang, S Law, I Brener, and O Mitrofanov. Poster Presentation OTST 2022.
2021
+Reshaping the emission of a THz quantum cascade laser frequency comb through an on-chip graphene modulator. A Gaspare, E A A Pogna, O Balci, S M Shinde, L Li, C Franco, A G Davies, E Linfield, A C Ferrari, G Scamarcio, and M S Vitiello. Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021.
+Millimeter wave photonics with terahertz semiconductor lasers. V Pistore, H Nong, P B Vigneron, K Garrasi, S Houver, L Li, A G Davies, E H Linfield, J Tignon, J Mangeney, R Colombelli, M S Vitiello, and S S Dhillon. 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 29 Aug 2021 – 03 Sep 2021. http://doi.org/10.1109/IRMMW-THz50926.2021.9567168
+Enhanced light-matter coupling and optical pumping of THz intersubband polaritons. J Hawecker, J M Manceau, P Goulain, J Mangeney, J Tignon, L H Li, E H Linfield, A G Davies, I Carusotto, R Colombelli, and S S Dhillon. 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 29 Aug 2021 – 03 Sep 2021. http://doi.org/10.1109/IRMMW-THz50926.2021.9567613
^Waveguide integrated terahertz quantum-cascade laser systems. E Nuttall, Y J Han, D Pardo, M D Horbury, S S Kondawar, N K North, I Kundu, O Auriacombe, T Rawlings, N Brewster, M Oldfield, M Salih, L H Li, E Zafar, A G Davies, E H Linfield, E Saenz, H Wang, B N Ellison, and A Valavanis. 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 29 Aug 2021 – 03 Sep 2021. http://doi.org/10.1109/IRMMW-THz50926.2021.9567247
+Transverse mode control of high-power single plasmon terahertz frequency quantum cascade lasers. C Song, M Salih, L H Li, J Mangeney, J Tignon, A G Davies, E H Linfield, and S Dhillon. 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 29 Aug 2021 – 03 Sep 2021. http://doi.org/10.1109/IRMMW-THz50926.2021.9567512
Probing the electron-phonon interaction of topological surface states in Sb2Te3 thin films with THz spectroscopy. V.S. Kamboj, A. Singh, H.E. Beere, and D.A. Ritchie. Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIV, part of SPIE OPTO, 2021.
+Sub-surface damage detection in marble structures using THz time domain and laser feedback interferometric imaging. A Bandyopadhyay, K Bertling, D Garg, K Singh, T Gillespie, YL Lim, L Li, P Dean, D Indjin, E H Linfield, A G Davies, A D Rakic, and A Sengupta. SPIE Optical Metrology, Online, Germany, 21 – 26 June (2021). https://doi.org/10.1117/12.2592548
THz near-field imaging and spectroscopy: technology, capabilities and novel applications. O Mitrofanov. CLEO 2021, Tutorial, May 13, 2021 (STh2C.5).
Perfectly absorbing photoconductive metasurfaces for terahertz applications. L Hale et al, SPIE Optics and Photonics, Metamaterials, Metadevices, and Metasystems 2021, San Diego, 2021.
Low power requirement photoconductive antenna detectors based on a perfectly absorbing metasurfaces. L Hale et al. SPIE Optics and Photonics, Terahertz Emitters, Receivers, and Applications XII, San Diego, 2021.
Direct terahertz detection in a dual-gated GaAs-AlGaAs two-dimensional electron gas. W. Michailow, P. Spencer, N. Almond, S. Kindness, R. Wallis, T. Mitchell, R. Degl’Innocenti, S. Mikhailov, H. Beere, and D. Ritchie. SPb Photonic, Optoelectronic & Electronic Materials, May 2021.
*+A new quantum mechanism of detecting terahertz radiation in 2D electron systems. W. Michailow, P. Spencer, N. Almond, S. Kindness, R. Wallis, T. Mitchell, R. Degl’Innocenti, S. Mikhailov, H. Beere, and D. Ritchie. EP2DS-24/MSS-20 conference, November 2021
*+The in-plane photoelectric effect – Experiment. W. Michailow, P. Spencer, N. Almond, S. Kindness, R. Wallis, T. Mitchell, R. Degl’Innocenti, S. Mikhailov, H. Beere, and D. Ritchie. 9th Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies, RJUSE-TeraTech 2021, Sendai, Japan, November 2021
+The in-plane photoelectric effect – Theory. S. A. Mikhailov, W. Michailow, H. E. Beere, D. A. Ritchie. 9th Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies, RJUSE-TeraTech 2021, Sendai, Japan, November 2021
2020
Giant optical nonlinearity interferences in terahertz quantum structures. S Houver, A Lebreton, T A S Pereira, G Xu, R Colombelli, I Kundu, L Li, E H Linfield, A G Davies, J Mangeney, J Tignon, R Ferreira, and S S Dhillon. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). http://doi.org/10.1109/irmmw-thz46771.2020.9370368
An antenna-coupled dual-gated electron channel as direct detector of 2 THz radiation. W. Michailow, J. Waldie, P. Spencer, N. Almond, S. Kindness, Y. Wu, B. Wei, R. Wallis, R. Degl’Innocenti, H. Beere, and D. Ritchie. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). DOI: 10.1109/IRMMW-THz46771.2020.9370817
Highly efficient one-dimensional quasi-crystalline THz semiconductor lasers. S Biasco, A Ciavatti, L Li, A G Davies, E H Linfield, H Beere, D Ritchie, and M S Vitiello. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). http://doi.org/10.1109/irmmw-thz46771.2020.9370588
Near-field study of the strong coupling between intersubband transitions in quantum wells and single patch antenna resonators in the mid-infrared. M Malerba, R Gillibert, V Giliberti, L Li, A G Davies, E H Linfield, D Spirito, L Baldassarre, R Colombelli, and M Ortolani. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). http://doi.org/10.1109/irmmw-thz46771.2020.9370768
On-chip terahertz spectroscopy of magnetoplasmons in a two-dimensional electron gas. R S Parker-Jervis, S J Park, S Zonetti, O Sydoruk, J Wu, C D Wood, L Li, A G Davies, E H Linfield, and J E Cunningham. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). http://doi.org/10.1109/IRMMW-THz46771.2020.9370779
Semiconductor THz frequency combs exploiting solution processed graphene. F P Mezzapesa, K Garrasi, J Schmidt, L Salemi, L Li, A G Davies, E H Linfield, T Carey, F Torrisi, A C Ferrari, and M S Vitiello. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). http://doi.org/10.1109/IRMMW-THz46771.2020.9370889
Ultrafast THz intersubband polariton saturable absorber integrated with a quantum cascade frequency comb. L Viti, F P Mezzapesa, J Raab, L Li, A G Davies, E H Linfield, C Lange, R Huber, and M S Vitiello. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). http://doi.org/10.1109/irmmw-thz46771.2020.9370406
Increasing the sensitivity of terahertz metamaterials for dielectric sensing by substrate etching. S J Park, K Meng, A D Burnett, T Gill, C D Wood, M Rosamond, L Li, L Chen, D R Bacon, J R Freeman, P Dean, Y H Ahn, E H Linfield, A G Davies, and J E Cunningham. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). http://doi.org/10.1109/IRMMW-THz46771.2020.9370679
Spectral analysis of a gas-phase reaction using self-mixing in a terahertz quantum cascade laser. E Nuttall, Y J Han, M D Horbury, N Brewster, M Oldfield, L Li, A G Davies, E H Linfield, B N Ellison, P Dean, D Stone, J H Lehman, and A Valavanis. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). http://doi.org/10.1109/IRMMW-THz46771.2020.9370753
Broadband nonlinear spectroscopy of hydrogen-like levels in Ge:As. T B Gill, D R Bacon, P Dean, A D Burnett, A Dunn, E H Linfield, A G Davies, and J R Freeman. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA. 08 –13 November (2020). http://doi.org/10.1109/IRMMW-THz46771.2020.9370613
Tuneable fully absorbing metasurfaces for efficient THz detection. L Hale et al. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), oral presentation, Buffalo, NY, USA. 08 –13 November (2020).
Terahertz nano-spectroscopy with resonant scattering probes. T Siday et al. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), oral presentation, Buffalo, NY, USA. 08 –13 November (2020).
Perfectly-absorbing photoconductive metasurfaces for THz applications. O Mitrofanov et al. 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), keynote presentation, Buffalo, NY, USA. 08 –13 November (2020).
Integrated, portable, tunable, and coherent terahertz sources and sensitive detectors based on layered superconductors. Delfanazari, K., Klemm, R. A., Joyce, H. J., Ritchie, D. A., & Kadowaki, K. (2020). Proceedings of the IEEE. doi:10.1109/JPROC.2019.2958810
Photoconductive metasurfaces for terahertz detection. L Hale et al. CLEO 2020 (USA), oral presentation, May 11, 2020.
Terahertz aperture SNOM mapping of metamaterial coupled resonators. N Almond et al. ‘SPIE Optics and Photonics (USA), poster presentation, August 2020.
Direct detection of terahertz radiation in a dual-gated GaAs-AlGaAs two-dimensional electron gas. W. Michailow, J. Waldie, P. Spencer, N. Almond, S. Kindness, Y. Wu, B. Wei, R. Wallis, R. Degl’Innocenti, H. Beere, and D. Ritchie. 2nd European Conference on SPb Photonic, Optoelectronic & Electronic Materials, April 2020 (invited talk).
Probing the electron-phonon interaction of topological surface states in Sb2Te3 thin films with THz spectroscopy. V.S. Kamboj, A. Singh, H.E. Beere, D.A. Ritchie. Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIV, part of SPIE OPTO, 2021.
Double layer active terahertz chiral metamaterial/graphene modulators. N W Almond, S J Kindness, W Michailow, B B Wei, P Braeuninger-Weimer, S Hofmann, H E Beere, D A Ritchie, R Degl’Innocenti. CLEO 2020 (USA).
2019
*Terahertz polarisation modulator by electronic control of graphene loaded chiral metamaterial device. Almond, N. W., Kindness, S. J., Michailow, W., Wei, B., Jakob, L., Braeuninger-Weimer, P., . . . Degl’Innocenti, R. (2019). In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. doi:10.1109/CLEOE-EQEC.2019.8872205
*Metamaterial/graphene active terahertz modulators Degl’Innocenti, R., Kindness, S. J., Almond, N. W., Michailow, W., Braeuninger-Weimer, P., Hofmann, S., . . . Ritchie, D. A. (2019).. In 2019 IEEE MTT-S International Wireless Symposium, IWS 2019 – Proceedings. doi:10.1109/IEEE-IWS.2019.8803931
Temperature dependence of the ferromagnetic response in CrxSb2-xTe3 topological insulator thin films Kamboj, V. S., Singh, A., Jakob, L., Duffy, L. B., Idros, N., Senanayak, S. P., . . . Ritchie, D. A. (2019). In Proceedings of SPIE – The International Society for Optical Engineering Vol. 10917. doi:10.1117/12.2503102
High Speed Photodetectors, Cyril C Renaud, J Seddon, C Graham, X Lin, AJ Seeds, Asia Communications and Photonics Conference, 2019.
^Continuously Tunable Coherent THz Synthesizer, Referenced to Primary Frequency Standards, Ponnampalam L, Fice MJ, Renaud C, Seeds AJ, Freeman JR, Mohandas RA, Linfield EH, Davies AG, International Topical Meeting on Microwave Photonics, MWP 2019, Ottawa, ON, Canada, 07 Oct 2019 – 10 Oct 2019. IEEE. Nov 2019.
*First Uni-Traveling Carrier Photodiode Compact Model Enabling Future Terahertz Communication System Design, C Mukherjee, Patrick Mounaix, C Maneux, M Natrella, J Seddon, C Graham, CC Renaud, ESSDERC 2019-49th European Solid-State Device Research Conference.
+Probe-Sample Interaction in Aperture-type THz Near-Field Microscopy of Complementary Resonators, Lucy Hale, Janine Keller, Tom Siday, Rodolfo I Hermans, Johannes Haase, John L Reno, Igal Brener, Giacomo Scalari, Jérôme Faist, Oleg Mitrofanov, IRMMW-THz, 2019.
+Engineering perfect absorption in all-dielectric photoconductive metasurfaces, Oleg Mitrofanov; Thomas Siday; Polina Vabishchevich; Lucy Hale; Thomas Harris; Ting Shan Luk; John Reno; Igal Brener, Metamaterials, Metadevices, and Metasystems 2019.
+Terahertz detectors based on all-dielectric photoconductive metasurfaces, Oleg Mitrofanov, Thomas Siday, Polina P Vabishchevich, Lucy Hale, Charles Thomas Harris, Ting Shan Luk, John L Reno, Igal Brene, Terahertz Emitters, Receivers, and Applications X, v11124, pp. 1112410 (2019).
*Photonic systems for tunable mm-wave and THz wireless communications, Luis Gonzales Guerrero, Katarzyna Balakier, Manoj Thakur, Haymen Shams, Lalitha Ponnampalam, Chris S Graham, Martyn Fice, Alwyn Seeds, Cyril Renaud, Photonics West 2019.
+Improving efficiency of photoconductive terahertz detectors using all-dielectric optical metasurfaces, O Mitrofanov, T Siday, RJ Thompson, TS Luk, I Brener, JL Reno, Smart Photonic and Optoelectronic Integrated Circuits XXI Conference 2019.
+Pulsed Photoconductive Connected Slot Array Operating at the Sub-mm Wavelength Band
Garufo A, Sberna P, Carluccio G, Freeman JR, Bacon DR, Li L, Bueno J, Baselmans JJA, Linfield EH, Davies AG, Lager IE, Llombart N, Neto A, 2019 49th European Microwave Conference (EuMC), Paris, France, 30 Sep 2019 – 01 Oct 2019. 2019 49th European Microwave Conference (EuMC). IEEE. 820-823. 25 Nov 2019.
+THz quantum cascade laser frequency combs, Mezzapesa FP, Garrasi K, Pistore V, Li L, Davies AG, Linfield EH, Dhillon S, Vitiello MS, 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Paris, France, 01 Sep 2019 – 06 Sep 2019. 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). 21 Oct 2019
Photoconductive arrays for high-field terahertz generation, D Bacon, M Rosamond, T Gill, A Burnett, L Li, J E Cunningham, E H Linfield, A G Davies, P Dean, and J Freeman, 44th International Conference on Infrared, Millimeter, and Terahertz Waves, Paris, France, 01 Sep 2019 – 06 Sep 2019. 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE. 21 Oct 2019.
+Patch Antenna Microcavities THz Quantum Cascade Lasers, Pérez-Urquizo J, Madéo J, Todorov Y, Li L, Davies AG, Linfield E, Sirtori C, Dani KM, 44th International Conference on Infrared, Millimeter, and Terahertz Waves, Paris, France, 01 Sep 2019 – 06 Sep 2019. 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE. 21 Oct 2019.
+Independent Control of Mode Selection and Power Extraction in Terahertz Quantum Cascade Lasers, Yu C, Zhu H, Zhu H, Chang G, Wang F, Chen J, Li L, Davies AG, Linfield EH, Xu G, He L, 44th International Conference on Infrared, Millimeter, and Terahertz Waves, Paris, France, 01 Sep 2019 – 06 Sep 2019. 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE. 21 Oct 2019.
^+High-Speed Modulation of a Terahertz Quantum Cascade Laser Using Coherent Acoustic Phonon Pulses
Dunn A, Poyser C, Dean P, Demic A, Valavanis A, Indjin D, Salih M, Kundu I, Li L, Akimov A, Davies G, Linfield E, Cunningham J, Kent A , 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2019), Paris, France, 01 Sep 2019 – 06 Sep 2019. Proceedings of the 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2019). IEEE. 21 Oct 2019
*High-resolution frequency and phase control of a terahertz laser, Mohandas RA, Ponnampalam L, Seeds A, Dean P, Linfield EH, Davies AG, Freeman JR, 44th International Conference on Infrared, Millimeter, and Terahertz Waves, Paris, France, 01 Sep 2019 – 06 Sep 2019. 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE. 21 Oct 2019.
+Highly Sensitive and Compact THz heterodyne receiver based on HEB and QCL at 2.7 THz, Joint F, Gay G, Vigneron PB, Vacelet T, Pirotta S, Lefevre R, Jin Y, Li LH, Davies AG, Linfield EH, Delorme Y, Colombelli R, 44th International Conference on Infrared, Millimeter, and Terahertz Waves, Paris, France, 01 Sep 2019 – 06 Nov 2019. 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE. 21 Oct 2019.
+High sensitivity 9μm metamaterial Infrared QC detectors at 300K, Bigioli A, Armaroli G, Palaferri D, Todorov Y, Vasanelli A, Gacemi D, Lianhe L, Davies AG, Linfield EH, Sirtori C, 44th International Conference on Infrared, Millimeter, and Terahertz Waves, Paris, France, 01 Sep 2019 – 06 Sep 2019. 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). 21 Oct 2019.
^Electromagnetic-field analysis of diagonal-feedhorn antennas for terahertz-frequency quantum-cascade laser integration, Zafar E, Auriacombe O, Rawlings T, Brewster N, Oldfield ML, Han Y, Li LH, Linfield EH, Davies AG, Dean P, Ellison BN, Valavanis A, 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2019), Paris, France, 01 Sep 2019 – 06 Sep 2019. Proceedings of the 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2019). IEEE. 21 Oct 2019.
+Fully Phase Stabilized Quantum Cascade Laser Frequency Comb, Bartalini S, Consolino L, Nafa M, Cappelli F, Garrasi K, Mezzapesa FP, Vitiello MS, Li L, Davies AG, Linfield EH, De Natale P, Lasers and Electro-Optics Europe (CLEO EUROPE), Munich, Germany, 23 Jun 2019 – 27 Jun 2019. 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. IEEE. 17 Oct 2019.
^Broadband terahertz gas spectroscopy through multimode self-mixing in a quantum cascade laser, Han Y, Partington J, Chhantyal-Pun R, Nuttall E, Henry M, Auriacombe O, Rawlings T, Li LH, Keeley J, Oldfield M, Brewster N, Dong R, Dean P, Davies AG, Ellison BN, Linfield EH, Valavanis A, SPIE Optical Engineering + Applications 2019: Terahertz Emitters, Receivers, and Applications X, San Diego, Calif., USA, 11 Aug 2019 – 15 Aug 2019. Editors: Razeghi M, Baranov AN, Vitiello MS . Proceedings of SPIE. SPIE. 11124. 06 Sep 2019.
*+Aperiodic photonic architectures for high-power distributed feedback THz quantum cascade lasers
Biasco S, Garrasi K, Li L, Beere HE, Ritchie DA, Davies AG, Linfield EH, Vitiello MS, SPIE Optical Engineering + Applications, 2019, San Diego, California, USA, 11 Aug 2019 – 15 Aug 2019. Proceedings Volume 11124, Terahertz Emitters, Receivers, and Applications X; 1112401 (2019). SPIE. 06 Sep 2019.
^+Modulation of the THz Emission by a Quantum Cascade Laser using Coherent Acoustic Phonon Pulses, Kent A, Dunn A, Poyser C, Akimov A, Dean P, Davies AG, Demic A, Indjin D, Li L, Linfield E et al., 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2019), Lisbon, Portugal, 23 Jul 2019 – 26 Jul 2019 Proceedings of the 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2019). META. 998-999. 23 Jul 2019.
Aperture-type Collection Mode Near-Field Microscopy and Spectroscopy of Individual Sub-Wavelength THz Resonators, Lucy Hale, et al., OTST2019 (March 2019).
Efficient Terahertz Detection with Photoconductive Metasurfaces, Oleg Mitrofanov et al., OTST2019 (March 2019).
Photoconductive metasurfaces for THz applications (invited), Oleg Mitrofanov et al., Feb 1, 2019, SPIE Photonics West.
All-dielectric photoconductive metasurfaces for terahertz applications (invited), Oleg Mitrofanov et al., Apr 10, 2019, POEM2019 (UK).
Terahertz detectors based on all-dielectric photoconductive metasurfaces (invited), O. Mitrofanov et al., Aug 12, 2019, SPIE Optics and Photonics (USA).
Engineering perfect absorption in all-dielectric photoconductive metasurfaces, O. Mitrofanov et al., Aug 15, 2019, SPIE Optics and Photonics (USA).
Efficient Terahertz Detection with Perfectly-Absorbing Metasurface, L. Hale et al., IRMMW-THz 2019.
Probe-Sample Interaction in Aperture-type THz Near-Field Microscopy of Complementary Resonators, L. Hale et al., IRMMW-THz 2019.
Terahertz detectors based on all-dielectric photoconductive metasurfaces, Mitrofanov et al., Proceedings Volume 11124, Terahertz Emitters, Receivers, and Applications X; (2019). http://dx.doi.org/10.1117/12.2529393
*Terahertz polarisation modulator by electronic control of graphene loaded chiral metamaterial device, N. Almond, S. J. Kindness, W. Michailow, B. Wei, L. Jakob, P. Braeuninger-Weimer, S. Hofmann, H. E. Beere, D. A. Ritchie and R. Degl’Innocenti, presented to CLEO/Europe-EQEC 2019, 23 – 27 June 2019, Munich, Germany.
Invited talk to the IEEE MTT-S International Wireless Symposium (IEEE IWS 2019) May 19-22, 2019 in Guangzhou, China. Title: “Metamaterial/graphene active terahertz modulators “, speaker; Dr. R. Degl’Innocenti
*Continuously tunable coherent THz Synthesizer, referenced to Primary frequency standards, L Ponnampalam, J R Freeman, M J Fice, R A Mohandas, C C Renaud, E H Linfield, A. G Davies, A J Seeds, MWP 2019.
Photoconductive arrays for high-field terahertz generation, D Bacon, M Rosamond, T Gill, A Burnett, L Li, J E Cunningham, E H Linfield, A G Davies, P Dean, and J Freeman, 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Paris, France, 01 – 06 September (2019), in the press
^Development of terahertz quantum-cascade lasers for satellite-borne measurement of key gas species, A Valavanis, Y Han, E Nuttall, E Zafar, D Pardo, O Auriacombe, T Rawlings, N Daghestani, E H Linfield, B N Ellison, and A G Davies, Conference on Lasers and Electro-Optics, CLEO 2019, OSA Technical Digest (2019). https://doi.org/10.1364/CLEO_AT.2019.AW3P.5
+Probing ultrafast switch-on dynamics of frequency tuneable semiconductor lasers using terahertz time-domain spectroscopy, I Kundu, F Wang, X Qi, H Nong, P Dean, J Freeman, A Valavanis, G Agnew, A Grier, T Taimre, L Lianhe, D Indjin, J Mangeney, J Tignon, S S Dhillon, A D Rakić, J E Cunningham, E H Linfield, and A G Davies, IEEE Photonics Society Summer Topical Meeting Series (SUM) 2019, Fort Lauderdale, Florida, USA, 08 – 10 July (2019), IEEE. 15 Aug 2019
^+Waveguide-integrated THz quantum-cascade lasers for atmospheric-research satellite payloads, A Valavanis, O Auriacombe, T Rawlings, Y Han, S Rea, M Crook, C Arena, D Walker, D Brooks, G Yu, L Li, A G Davies, G Savini, E H Linfield, B N Ellison, and E Saenz, 6th IEEE MTT-S International Wireless Symposium, Guangzhou, China, 19 May 2019 – 22 May 2019. IEEE IWS 2019. IEEE. 19 Aug 2019
Oleg Mitrofanov et al.: “Efficient Terahertz Detection with Photoconductive Metasurfaces.” OTST2019.
Lucy Hale, et al.: “Aperture-type Collection Mode Near-Field Microscopy and Spectroscopy of Individual Sub-Wavelength THz Resonators” OTST2019.
Invited talk to the IEEE MTT-S International Wireless Symposium (IEEE IWS 2019) May 19-22, 2019 in Guangzhou, China. R Degl’Innocenti. Title: “Metamaterial/graphene active terahertz modulators”
Conference abstract accepted (poster): T. Siday and O. Mitrofanov: “Scattering Efficiency of Resonant Terahertz Near-field Probes” OTST2019.
Reshma Anamari Mohandas, Lalitha Ponnampalam, Lianhe H. Li, Cyril C. Renaud, Alwyn J. Seeds, Paul Dean, Edmund H. Linfield, Giles A. Davies, Joshua R. Freeman, “Phase control of a terahertz quantum cascade laser using an optical injection phase-lock loop,” Photonics West, 2019
2018
THz Over Fibre for High Capacity Wireless Transmission: Tutorial Paper, A Seeds, K Balakier, C Graham, X Lin, C Renaud, M Fice, H Shams, IEEE Photonics Conference (IPC), pp. 1 – 2, September 2018.
An efficient terahertz detector based on an optical hybrid cavity, Tom Siday, Robert J Thompson, Samuel Glass, Ting-Shan Luk, John L Reno, Igal Brener, Oleg Mitrofanov, Proceedings Volume 10531, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XI; 1053109 (2018) https://doi.org/10.1117/12.2290971
Quasi-optical injection locking of a terahertz quantum cascade laser to a fiber-based frequency comb, Joshua R. Freeman, Reshma Anamari Mohandas, Lalitha Ponnampalam, Lianhe H. Li, Cyril C. Renaud, Alwyn J. Seeds, Paul Dean, Edmund H. Linfield and Giles A. Davies, presented at EOS-TST2018 (Berlin) (invited).
Quasi-optical injection locking of terahertz quantum cascade lasers, Joshua R. Freeman, Reshma Anamari Mohandas, Lalitha Ponnampalam, Lianhe H. Li, Cyril C. Renaud, Alwyn J. Seeds, Paul Dean, Edmund H. Linfield and Giles A. Davies, presented at IQCLSW 2018 (Cassis, France) (invited).
Leaky Lens Antenna as Optically Pumped Pulsed THz Emitter, Garufo, A., Sberna, P., Carluccio, G., Bueno, J., Freeman, J. R., Llombart, N., Linfield, E. H., Davies, A. G. and Neto, A. (2018). In 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Nagoya, Japan: IEEE. doi:10.1109/IRMMW-THz.2018.8509897
UK THz Network Conference presentation (oral): T.Siday, M Natrella, J Wu, H Liu, O Mitrofanov, “Resonant scattering probes for terahertz near-field microscopy”, Dec 11, 2018, Warwick, UK.
Oleg Mitrofanov (invited): “Near-field probing of highly confined resonant THz fields.” At Frontiers of photonics, plasmonics and electronics with 2D nanosystems, July 16, 2018, Erice, Italy.
Monolithically integrated phase locked semiconductor lasers (invited), K Balakier, M. Fice, C Renaud, L Ponnampalam, F van Dijk, A Seeds, 2018 Asia Communications and Photonics Conference, October 2018.
A Photonics Enabled Millimetre Wave Frequency Domain Spectrometer for Glucose Concentration Sensing, J Seddon, K Balakier, X Lin, C Graham, A Seeds, C Renaud, IRMMW-THz, 2018. DOI: 10.1109/IRMMW-THz.2018.8510467
External cavity tuned terahertz quantum cascade laser with a metamaterial/graphene device, N. W. Almond, S. J. Kindness, B. Wei, R. Wallis, V. S. Kamboj, P. Braeuninger-Weimer, S. Hofmann, H. E. Beere, R. Degl’Innocenti, D. A. Ritchie, oral presentation at IQCLSW 2018 conference, Cassis, France 2–7 September 2018.
Tuneable Optical Frequency Comb Generator for THz Spectroscopy, Ponnampalam, L; Fice, MJ; Shams, H; Renaud, CC; Seeds, AJ, IRMMW-THz, Nagoya, Japan 2018. https://doi.org/10.1109/IRMMW-THz.2018.8510370.
Continuous frequency tuning of Y-branched terahertz quantum cascade lasers with photonic lattice, Iman Kundu, Paul Dean, Alexander Valavanis, Joshua R. Freeman, Mark C. Rosamond, Lianhe Li, Yingjun Han, Edmund H. Linfield, and A. Giles Davies, CLEO USA, San Jose, CA, USA, 13 – 18 May 2018.
Active optoelectronic frequency modulation of metamaterial/graphene device with coupled resonators, S. J. Kindness, N. W. Almond, R. Wallis, B. Wei, V. S. Kamboj, P. Braeuninger-Weimer, S. Hofmann, H. E. Beere, D. A. Ritchie, and R. Degl’lnnocenti, CLEO USA, San Jose, CA, USA, 13 – 18 May 2018.
Amplitude Stabilization of a Terahertz Quantum Cascade Laser with an External Metamaterial Amplitude Modulator, B. Wei, S. J. Kindness, N. W. Almond, R. Wallis, Y. Wu, Y. Ren, P. Braeuninger-Weimer, S. Hofmann, H. E. Beere, D. A. Ritchie and R. Degl’lnnocenti, CLEO USA, San Jose, CA, USA, 13 – 18 May 2018.
Metamaterial/graphene amplitude and frequency modulators for the active control of terahertz quantum cascade lasers. (invited) R. Degl’Innocenti, S. Kindness, B. Wei, N. Almond, R. Wallis, V. S. Kamboj, P. Braeuninger-Weimar, S. Hofmann, H. E. Beere, D. Ritchie, SPIE Optics+Photonics, San Diego, CA, USA, 19 – 23 August 2018.
Terahertz scattering based scanning near field microscopy (THz s-SNOM) based on self-mixing in quantum cascade laser (invited), H.E. Beere, EMN Meeting on Terahertz, April 16 – 20, Amsterdam, Netherlands.
Spectrally Efficient SSB signals for W-band Links Enabled by Kramers-Kronig Receiver, Luis Gonzalez-Guerrero, H. Shams, Irshaad Fatadin, M. J. Fice, Mira Naftaly, A. J. Seeds, and C. C. Renaud, OFC 2018. https://doi.org/10.1364/OFC.2018.Th2A.61
Digital Radio over Fiber Distribution using Millimetre Wave Bridging, H. Shams, T. Li, C. C. Renaud, A. J. Seeds, R. Penty, M. Fice, and I. White, 17856094, OFC/NFOEC 2018 (2018), pp. 2–4.
Resonant scattering probes for terahertz near-field microscopy (Invited), T Siday, M Natrella, J Wu, H Liu,and O Mitrofanov, 31 January 2018, SPIE Photonics West 2018, San Francisco, CA, USA. https://doi.org/10.1117/12.2290903
Near-field probing of modes excited in terahertz double-metal resonators (Invited), O Mitrofanov, Y Todorov, A Mottaghizadeh, D Gacemi, C Sirtori, I Brener, and J Reno, 31 January 2018, SPIE Photonics West, San Francisco, CA, USA.
Sub-wavelength near field imaging techniques at terahertz frequencies (Invited), M C Giordano, L Viti, O Mitrofanov, G Scamarcio, S Mastel, R Hillenbrand, D Ercolani, L Sorba, and M S Vitiello, 29 January 2018, SPIE Photonics West, San Francisco, CA, USA. https://doi.org/10.1117/12.2291518
Quasi-optical injection locking of a terahertz quantum cascade laser to a fiber-based frequency comb, J R Freeman, L Ponnampalam, H Shams, R A Mohandas, C Renaud, P Dean, L Li, A G Davies, A Seeds, and E H Linfield, 31 January 2018, SPIE OPTO, San Francisco, CA, USA.
Contactless graphene conductivity mapping and hybrid graphene/plasmonic optoelectronic devices, R. Degl’Innocenti and H. Lin, UK-China 2D Materials Conference, Manchester, 24-26 January, 2018.
2017
Characterization of the THz quasi-optical channel for the measurement of the power radiated by photoconductive antennas, Garufo, A., Carluccio, G., Freeman, J. R., Bacon, D. R., Llombart, N., Linfield, E. H., Davies, A. G. and Neto, A. (2017). In 42nd International Conference on Infrared, Millimeter, and Terahertz Waves. Cancun, Mexico: IEEE. doi:10.1109/IRMMW-THz.2017.8066944
Optical phase lock loop as high-Q filter for optical frequency comb line selection, K Balakier, H Shams, MJ Fice, L Ponnampalam, CS Graham, CC Renaud, AJ Seeds, 17398226, International Topical Meeting on Microwave Photonics (MWP) 2017. DOI: 10.1109/MWP.2017.8168727
Active photonic integrated filter for optical comb line selection (Post deadline), K Balakier, H Shams, MJ Fice, L Ponnampalam, C Graham, C Renaud, AJ Seeds, IEEE Photonics Conference, 30th Annual Conference of the IEEE Photonics Society, 2017.
Photonic integrated circuit optical phase lock loop tuneable active filter, K Balakier, H Shams, MJ Fice, L Ponnampalam, CS Graham, CC Renaud, AJ Seeds, 17545225, Photonics Conference (IPC) Part II, 2017. DOI: 10.1109/PC2.2017.8283409
Haymen Shams, Katarzyna Balakier, Martyn J Fice, L Ponnampalam, CS Graham, Cyril C Renaud, Alwyn J Seeds, Frédéric van Dijk, “Coherent frequency tuneable thz wireless signal generation using an optical phase lock loop system,” International Topical Meeting on Microwave Photonics (MWP), pp. 1 – 4, 2017. DOI: 10.1109/MWP.2017.8168638
Katarzyna Balakier, Martyn J Fice, Lalitha Ponnampalam, Chris S Graham, Alwyn J Seeds, Cyril C Renaud, “Monolithically integrated optical phase lock loop with 1 THz tuneability,” 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), pp. 1-2, 2017 DOI: 10.1109/IRMMW-THz.2017.8067102
Oleg Mitrofanov, “Hybrid cavity for photo-conductive detectors with nanoantenna arrays and distributed Bragg reflectors,” Proceedings Volume 10353, Optical Sensing, Imaging, and Photon Counting: Nanostructured Devices and Applications 2017; 103530J (2017) https://doi.org/10.1117/12.2275566
Oleg Mitrofanov, “Terahertz near-field microscopy: Science, Technology, and Insights,” International Conference on Infrared, Millimeter and Terahertz Waves – IRMMW-THz 2017.
Thomas Siday, Robert J Thompson, Samuel Glass, Ting-Shan Luk, John L Reno, Igal Brener, Oleg Mitrofanov, “Designing an efficient hybrid optical cavity,” International Conference on Infrared, Millimeter and Terahertz Waves – IRMMW-THz 2017. DOI: 10.1109/IRMMW-THz.2017.8066961
Oleg Mitrofanov ; Leonardo Viti ; Maria Caterina Giordano ; Enrico Dardanis ; Daniele Ercolani ; Antonio Politano ; Lucia Sorba ; Miriam S. Vitiello, “Near-Field microscopy with phase sensitive coherent detection employing quantum cascade lasers,” 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)-2017. DOI: 10.1109/IRMMW-THz.2017.8067244
Other Outputs
Related Programme grant awarded in Non-Ergodic Quantum Manipulation (Pepper, Ritchie et al), £7M 2019-2023.
University seminar delivered: Lucy Hale: “Aperture-type collection mode near-field microscopy and spectroscopy of individual sub-wavelength THz resonators,” November 2018, ETH Zurich, Zurich, Switzerland. 2018.
Lecture at Summer School: Oleg Mitrofanov: “THz near-field microscopy technique and applications with focus on aperture-type near-field imaging.” PETER Summer School, Oct 3-5, 2018, Brno, Czech Rep.
New Investigator Award, PI Dr R Degl’Innoncenti: (EPSRC Reference: EP/S019383/1) “THz metamaterial/graphene optoelectronic modulators” 15/1/2019 to14/1/2021.
Aligned grant awarded: EPSRC grant EP/R00501X: “The Physics of plasmonic gain in low-dimensional electronic systems”, J Cunningham, C D Wood, E H Linfield, and A G Davies, £527,764, Dec 2017 for three years (part of a ~£1M consortium, collaborative with Imperial College).
Aligned iCASE award from NPL, start date Oct 2018 for four years, “Metrology for sub-mm-wave communications and electronics”, J Cunningham, N Ridler, and R Clarke.
THz QCL imaging instrument presented at KTN Emerging Technologies and Industries Showcase events: Emerging Imaging Technologies, 1st May, London.
Kasia Balakier awarded an EPSRC UKRI Innovation Fellowship (2018).
Video Production on THz applications for public engagement activity of HyperTHz programme grant.