Probing dielectric relaxation properties of liquid CS[sub 2] with terahertz time-domain spectroscopy

Yu, B. L.; Zeng, F.; Xing, Q.; Alfano, R. R.
June 2003
Applied Physics Letters;6/30/2003, Vol. 82 Issue 26, p4633
Academic Journal
Terahertz time-domain spectroscopy is used to investigate the dielectric relaxation properties of liquid CS[SUB2]. The frequency-dependent absorption coefficient and index of refraction were measured in the frequency range 0.2-2.0 THz. The ultrafast dielectric relaxation time of liquid CS[SUB2] was determined to be 630±30 fs by fitting the dielectric function to the Debye model which is attributed to average time for rocking and rotational response of the CS[SUB2] (molecules possessing an anisotropic polarizability.


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