Measurements of the THz absorption and dispersion of ZnTe and their relevance to the electro-optic detection of THz radiation
Date
1999-06-07Author
Gallot, G.
Zhang, Jiangquan
McGowan, R. W.
Jeon, Tae-In
Grischkowsky, D.
Metadata
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Via THz time-domain spectroscopy, we have measured the absorption and index of refraction of single-crystal (110) ZnTe from 0.3 to 4.5 THz. We find that the absorption is dominated by two lower-frequency phonon lines at 1.6 and 3.7 THz and not by the transverse-optical (TO) -phonon line at 5.3 THz as previously assumed. However, the index of refraction is determined mainly by the TO-phonon line. Using these data, we discuss a frequency-domain picture of electro-optic detection of THz radiation below the TO-phonon resonance and compare with the photoconductive THz receiver over the same frequency range.
DOI
10.1063/1.124124Citation
Gallot, G., Zhang, J., McGowan, R. W., Jeon, T.-I., & Grischkowsky, D. (1999). Measurements of the THz absorption and dispersion of ZnTe and their relevance to the electro-optic detection of THz radiation. Applied Physics Letters, 74(23), 3450-3452. https://doi.org/10.1063/1.124124