7 March 2014 Broadband THz imaging in gas and multiple quantum-well media
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Abstract
We discuss two schemes of ultrafast THz imaging, both constituting non-perturbative response of either gas or solidstate media to the THz bias fields and thus offering very sensitive detection of the latter. In the first approach, we utilize air-breakdown plasma for space-time mapping of the THz field. In the second approach, we THz-induce strong electroabsorption response in the multiple quantum-well sample of thickness much smaller than the wavelength of the THz bias. As such, ultrabroadband imaging of the quasi single-cycle THz pulses can be possible.
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Chia-Yeh Li, Denis V. Seletskiy, Jeffrey G. Cederberg, Mansoor Sheik-Bahae, "Broadband THz imaging in gas and multiple quantum-well media", Proc. SPIE 8984, Ultrafast Phenomena and Nanophotonics XVIII, 898413 (7 March 2014); doi: 10.1117/12.2040216; https://doi.org/10.1117/12.2040216
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