We perform ultrabroadband THz spectroscopy of the dielectric function of arsenic trisulfide (As2S3). We observe the transition from universal scaling of the absorption at low frequencies to medium- and short-range-order at higher frequencies.
© 2012 OSA
M. Zalkovskij, R. Malureanu, A. Novitsky, D. Savastru, A. Popescu, A. V. Lavrinenko, and P. U. Jepsen, "Ultrabroadband THz spectroscopic investigation of As2S3," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (online) (Optical Society of America, 2012), paper CM1L.2.
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