144 citations · 314 across the 8 of their papers we have counts for
5 papers · 1 filter
Influence of surface passivation on ultrafast carrier dynamics and terahertz radiation generation in GaAs
J. Lloyd-Hughes, S. K. E. Merchant, F. Lan +4
The carrier dynamics of photoexcited electrons in the vicinity of the surface of (NH4)2S-passivated GaAs were studied via terahertz (THz) emission spectroscopy and optical-pump THz…
Detecting the full polarisation state of terahertz transients
E. Castro-Camus, J. Lloyd-Hughes, M. D. Fraser +3
We have developed a detector which records the full polarisation state of a terahertz (THz) pulse propagating in free space. The three-electrode photoconductive receiver simultaneo…
Simulation and optimization of arsenic-implanted THz emitters
M. B. Johnston, J. Lloyd-Hughes, E. Castro-Camus +2
We have used a three-dimensional pseudo-classical Monte Carlo simulation to investigate the effects of As+ ionimplantation on pulsed terahertz radiation emitters. Devices based on…
Polarisation-Sensitive THz Detectors
M. B. Johnston, E. Castro-Camus, J. Lloyd-Hughes +3
We have developed a detector of coherent terahertz (THz) radiation that can recover the full polarisation state of a THz transient. The device is three-contact photoconductive rece…
Photoconductive detection of arbitrary polarised terahertz pulses
E. Castro-Camus, J. Lloyd-Hughes, M. B. Johnston +3
To perform polarization sensitive THz-TDS, it is necessary to be able to measure two (preferably orthogonal) electric field components of a terahertz transient. We have developed a…