THz-frequency electromagnetic radiation may be generated by illuminating a suitable target with short pulses of near-infrared radiation. We present results of experiments employing pulses of < 12 fs irradiating a HgCdTe thin film. The resulting THz emission was detected using a liquid-He–cooled bolometer. Strong azimuthal angle dependence on the generated THz power is observed. The THz power varies quadratically with the pump power.
This conference paper was originally published as Smith, ML, Mendis, R, Vickers, REM & Lewis, RA, Terahertz Emission from Mercury Cadmium Telluride, 32nd Annual Condensed Matter and Materials Meeting, Wagga Wagga, 30 January-1 February 2008. Original conference information available here