FAR-INFRARED, FREQUENCY DEPENDENT, COMPLEX DIELECTRIC CONSTANTS OF SEVERAL POLAR LIQUIDS

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Title: FAR-INFRARED, FREQUENCY DEPENDENT, COMPLEX DIELECTRIC CONSTANTS OF SEVERAL POLAR LIQUIDS
Creators: Schmuttenmaer, C. A.; Kindt, J. T.
Issue Date: 1995
Publisher: Ohio State University
Abstract: The frequency dependent complex dielectric constant, $\hat{\varepsilon}(\omega) = \varepsilon_{1}(\omega) + i\varepsilon_{2}(\omega)$, spanning the range from 0 to 2 THz $(0 to 66.6 cm^{-1})$ has been measured for several polar liquids using time-domain Fourier transform THz beam spectroscopy. Liquids studeid include propanol, ethanol, methanol and water. The THz pulses are generated in the standard $fashion^{1}$ by illuminating the gap of a biased transmission line deposited on a GaAs substrate with visible pulses (780 nm) of 100 fs duration. The THz pulses are detected by an optically gated receiver that consists of a $30\mu m$ long antenna with a $5\mu m$ gap deposited on silicon-on-sapphire substrate. The temperature dependence of these spectra will be discussed.
Description: 1. H. Harde, N, Katzenellenbogen, and D. Grischkowsky, J. Opt. Soc. Am. B 11, 1018 (1994).
Author Institution: Yale University, 225 Prospect St., New Haven, CT 06520-8107.
URI: http://hdl.handle.net/1811/29653
Other Identifiers: 1995-RG-10
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