Terahertz pulsed imaging with 1.06 μm laser excitation

Baker, C.; Gregory, I. S.; Tribe, W. R.; Bradley, I. V.; Evans, M. J.; Withers, M.; Taday, P. F.; Wallace, V. P.; Linfield, E. H.; Davies, A. G.; Missous, M.
November 2003
Applied Physics Letters;11/17/2003, Vol. 83 Issue 20, p4113
Academic Journal
We report the operation of a pulsed terahertz (THz) imaging system that uses a 120 fs pulse-width laser operating at 1.06 μm, and photoconductive InGaAs emitters and detectors. THz images are presented of biological and nonbiological specimens. The signal-to-noise ratio and frequency range of this system are compared to those obtained from existing pulsed imaging systems based on 0.8 μm excitation. © 2003 American Institute of Physics.


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