Prof. Michael B. Johnston Profile

Prof. Michael B. Johnston

at Univ of Oxford

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Author

Publications (13)

Proceedings Article | 4 October 2023 Presentation + Paper

Topological materials as promising candidates for tuneable helicity-dependent terahertz emitters

Jessica Boland, Djamshid Damry, Chelsea Xia, Yahya Saboon, Abdul Mannan, Piet Schönherr, Dharmalingam Prabhakaran, Laura Herz, Thorsten Hesjedal, Michael Johnston

Proceedings Volume 12683, 1268302 (2023) https://doi.org/10.1117/12.2681745

KEYWORDS: Terahertz radiation, Nanowires, Polarization, Crystals, Terahertz spectroscopy, Photon polarization

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Proceedings Article | 17 March 2023 Presentation

Nanowire-based sensors reveal the full polarisation state of THz photons

Michael Johnston

Proceedings Volume PC12430, PC124300P (2023) https://doi.org/10.1117/12.2646977

KEYWORDS: Terahertz radiation, Sensors, Nanowires, Polarization, Photons, Imaging spectroscopy, Semiconductors, Dielectric polarization, Spectroscopy, Spectrometers

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Proceedings Article | 5 March 2021 Presentation

Heterogeneous integration of semiconductor nanowires in 2D and 3D nanophotonic systems

Antonio Hurtado, Dimitars Jevtics, Benoit Guilhabert, Matej Hejda, Joshua Robertson, Michael Strain, Martin Dawson, Kun Peng, Michael Johnston, Hoe Tan, Chennupati Jagadish, John McPhillimy

Proceedings Volume 11680, 116800X (2021) https://doi.org/10.1117/12.2584337

KEYWORDS: Semiconductors, Nanophotonics, Nanowires, Waveguides, Nanofabrication, Fabrication, 3D acquisition, Terahertz radiation, Silica, Signal detection

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Proceedings Article | 18 September 2018 Presentation + Paper

Engineering semiconductor nanowires for photodetection: from visible to terahertz

Hannah Joyce, Kun Peng, Patrick Parkinson, Jack Alexander-Webber, Michael Johnston, C. Jagadish, H. Hoe Tan

Proceedings Volume 10729, 1072909 (2018) https://doi.org/10.1117/12.2320715

KEYWORDS: Nanowires, Terahertz radiation, Gallium arsenide, Indium arsenide, Photodetectors, Sensors, Polarizers, Field effect transistors, Semiconductors, Near field optics

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Proceedings Article | 7 September 2018 Presentation + Paper

Probing the photophysics of semiconductor nanomaterials using optical pump-terahertz probe spectroscopy: from nanowires to perovskites

Hannah Joyce, Jessica Boland, Sarwat Baig, Michael Johnston, Christopher Davies, Stephanie Adeyemo, Lissa Eyre, C. Jagadish, H. Hoe Tan, Felix Deschler

Proceedings Volume 10724, 107240F (2018) https://doi.org/10.1117/12.2320720

KEYWORDS: Nanowires, Terahertz radiation, Indium arsenide, Nanomaterials, Perovskite, Gallium arsenide, Semiconductors, Spectroscopy, Optical spectroscopy

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Proceedings Article | 21 February 2018 Presentation + Paper

Engineering III-V nanowires for optoelectronics: from epitaxy to terahertz photonics

Hannah Joyce, Chawit Uswachoke, Sarwat Baig, Stephanie Adeyemo, Jessica Boland, Djamshid Damry, Christopher Davies, Jennifer Wong-Leung, H. Hoe Tan, C. Jagadish, Laura Herz, Michael Johnston

Proceedings Volume 10543, 105430I (2018) https://doi.org/10.1117/12.2299831

KEYWORDS: Nanowires, Terahertz radiation, Gallium arsenide, Polarizers, Terahertz spectroscopy, Picosecond phenomena, Epitaxy, Polarization, Modulators, Modulation

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Proceedings Article | 11 November 2016 Presentation

Charge-carrier dynamics in hybrid metal halide perovskites (Conference Presentation)

Rebecca Milot, Waqaas Rehman, Giles Eperon, Henry Snaith, Michael Johnston, Laura Herz

Proceedings Volume 9923, 99230D (2016) https://doi.org/10.1117/12.2238164

KEYWORDS: Lead, Metals, Optoelectronics, Diffusion, Thin films, Crystals, Nanomaterials, Perovskite, Chemistry, Interfaces

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Proceedings Article | 7 December 2013 Paper

Measuring the electrical properties of semiconductor nanowires using terahertz conductivity spectroscopy

Hannah Joyce, Callum Docherty, Chaw-Keong Yong, Jennifer Wong-Leung, Qiang Gao, Suriati Paiman, H. Hoe Tan, C. Jagadish, James Lloyd-Hughes, Laura Herz, Michael Johnston

Proceedings Volume 8923, 892321 (2013) https://doi.org/10.1117/12.2049016

KEYWORDS: Indium arsenide, Terahertz spectroscopy, Gallium arsenide, Nanoparticles, Semiconductors, Crystals, Terahertz radiation, Spectroscopy, Spectroscopes, Nanowires

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Proceedings Article | 14 March 2012 Paper

Quantitative measurement of a three-component mixture based on THz spectra

Michael Johnston, Katherine Dunn, Zhi Li, Haixia Su, Fang Yan, Zhaohui Zhang, Xiaoyan Zhao

Proceedings Volume 8330, 833004 (2012) https://doi.org/10.1117/12.919981

KEYWORDS: Terahertz radiation, Absorption, Terahertz spectroscopy, Infrared radiation, Spectroscopy, Imaging systems, Visible radiation, Laser applications, Photonics, Terahertz technology

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Proceedings Article | 7 February 2009 Paper

Terahertz conductivity of magnetoexcitons and electrons in semiconductor nanostructures

D. Ritchie, M. Johnston, L. Sirbu, J. Faist, I. Tiginyanu, S. K. Merchant, J. Lloyd-Hughes, H. Beere

Proceedings Volume 7214, 72140N (2009) https://doi.org/10.1117/12.807546

KEYWORDS: Electrons, Terahertz radiation, Excitons, Magnetism, Semiconductors, Terahertz spectroscopy, Gallium arsenide, Spectroscopy, Quantum wells, Magnetic semiconductors

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Proceedings Article | 7 March 2006 Paper

Detecting the full polarization state of terahertz transients

M. Johnston, E. Castro-Camus, H. Tan, M. Fraser, C. Jagadish, J. Lloyd-Hughes

Proceedings Volume 6120, 61200Q (2006) https://doi.org/10.1117/12.660717

KEYWORDS: Terahertz radiation, Polarization, Receivers, Sensors, Quartz, Pulsed laser operation, Refractive index, Picosecond phenomena, Spectroscopy, Dichroic materials

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Proceedings Article | 15 February 2006 Paper

Carrier dynamics in ion-implanted semiconductors studied by simulation and observation of terahertz emission

E. Castro-Camus, M. Fraser, M. Johnston, C. Jagadish, J. Lloyd-Hughes, H. Tan

Proceedings Volume 6118, 61180K (2006) https://doi.org/10.1117/12.644074

KEYWORDS: Terahertz radiation, Gallium arsenide, Semiconductors, Switches, Scattering, Indium arsenide, Phonons, Ions, Picosecond phenomena, Carrier dynamics

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Proceedings Article | 17 September 1998 Paper

Effect of ion mass on the irradiation-induced intermixing of GaAs/AlGaAs quantum wells

Richard Goldberg, Ian Mitchell, Hark Tan, Michael Gal, M. Johnston, Chennupati Jagadish

Proceedings Volume 3413, (1998) https://doi.org/10.1117/12.321942

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Showing 5 of 13 publications

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