University of Oxford home page
Oxford Terahertz Photonics Group
Oxford Physics

Quick links:

Contact details
Select a topic: [Nanowires] [Perovskite Photovoltaics] [Terahertz Technology] [Full publication list]

Key pubilcations on Terahertz Technology

table of content figure
Three-dimensional cross-nanowire networks recover full terahertz state
Peng et al. Science, 368:510--513 (May 2020)
[ pdf ][ DOI:10.1126/science.abb0924 ]
We have developed a new nanowire-based THz sensor that recovers the full state of THz pulses.

table of content figure
Temperature-dependent refractive index of quartz at terahertz frequencies
Davies et al. J. Infrared Millim. Terahertz Waves, 39:1236-1248 (Dec 2018)
[ pdf ][ DOI:10.1007/s10762-018-0538-7 ]

table of content figure
An ultrafast switchable terahertz polarization modulator based on iii-v semiconductor nanowires
Baig et al. Nano Lett., 17:2603-2610 (Apr 2017)
[ pdf ][ DOI:10.1021/acs.nanolett.7b00401 ]
Here, we present a novel ultrafast active THz polarization modulator based on GaAs semiconductor nanowires. The device has a picosecond switching time and broad bandwidth (0.1 and 4 THz).

table of content figure
The 2017 terahertz science and technology roadmap
Dhillon et al. J. Phys. D-Appl. Phys., 50:043001 (Feb 2017)
[ pdf ][ DOI:10.1088/1361-6463/50/4/043001 ]
Comprehensive roadmap of terahertz science and technology in 2017. This 50 page article reviews that state-of-the-art and predicts future directions or research.

table of content figure
Single Nanowire Photoconductive Terahertz Detectors
Peng et al. Nano Lett., 15:206-210 (Jan 2015)
[ pdf ][ DOI:10.1021/nl5033843 ]
We have developed a phase sensitive detector of coherent THz radiation based on a single nanowire. The device uses one GaAs/AlGaAs core-shell nanowire as is active component.

table of content figure
An ultrafast carbon nanotube terahertz polarisation modulator
Docherty et al. J. Appl. Phys., 115:203108 (May 2014)
[ pdf ][ DOI:10.1063/1.4879895 ]
We demonstrate the potential of unaligned carbon nanotubes as dynamically tunable THz polarisers

table of content figure
Improved performance of {GaAs}-based terahertz emitters via surface passivation and silicon nitride encapsulation
Headley et al. IEEE J. Sel. Top. Quantum Electron., 17:17-21 (Jan 2011)
[ pdf ][ DOI:10.1109/JSTQE.2010.2047006 ]
We have improved the stability and performance of terahertz photoconductive switches using a combination of chemical surface passivation and silicon nitride encapsulation.

table of content figure
Photoconductive response correction for detectors of terahertz radiation
Castro-Camus et al. J. Appl. Phys., 104:053113 (Sep 2008)
[ pdf ][ DOI:10.1063/1.2969035 ]
We present a deconvolution method for correcting the spectral response of photoconductive THz detectors. We have also optimised ion-implanted materials for THz detector applications.

table of content figure
Simulation and optimisation of terahertz emission from InGaAs and InP photoconductive switches
Lloyd-Hughes et al. Solid State Commun., 136:595-600 (Dec 2005)
[ pdf ][ DOI:10.1016/j.ssc.2005.09.037 ]
We simulate the terahertz emission from laterally biased InGaAs and InP using a three-dimensional carrier dynamics model in order to optimise the semiconductor material.

table of content figure
Generation of high-power terahertz pulses in a prism
Johnston et al. Opt. Lett., 27:1935-1937 (Nov 2002)
[ pdf ][ DOI:10.1364/OL.27.001935 ]
A compact, high-power emitter of half-cycle terahertz (THz) radiation is demonstrated which produces pulses 20 times more powerful than conventional emitters.

table of content figure
Simulation of terahertz generation at semiconductor surfaces
Johnston et al. Phys. Rev. B, 65:165301 (Apr 2002)
[ pdf ][ DOI:10.1103/PhysRevB.65.165301 ]
A semiclassical Monte Carlo model was developed which was used to distinguish between surface depletion field and photo-Dember mechanisms for generating THz radiation, and explain magnetic field enhanced THz generation.