On reflection of terahertz radiation from a rough surface


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We computationally analyze the influence of random inhomogeneities of the interface surface between two media that are diagnosed by the pulsed THz spectroscopy method. The statistics of inhomogeneities is characterized by the rms dispersion and correlation radius. The medium to be diagnosed is modeled by a Lorentz contour, the position and the width of which can serve as recognizable indicators. For monochromatic radiation and for a radiation pulse with a wide spectrum (close to the video pulse), a signal at a “point” detector is calculated in the absence and in the presence of inhomogeneities. The results yield conditions under which inhomogeneities significantly affect the recognition of different substances.

作者简介

N. Rosanov

Vavilov State Optical Institute; ITMO University; Ioffe Technical Physical Institute

编辑信件的主要联系方式.
Email: nnrosanov@mail.ru
俄罗斯联邦, St. Petersburg, 199053; St. Petersburg, 197101; St. Petersburg, 194021

G. Sochilin

Vavilov State Optical Institute

Email: nnrosanov@mail.ru
俄罗斯联邦, St. Petersburg, 199053

S. Fedorov

Vavilov State Optical Institute; ITMO University

Email: nnrosanov@mail.ru
俄罗斯联邦, St. Petersburg, 199053; St. Petersburg, 197101

A. Shatsev

Vavilov State Optical Institute

Email: nnrosanov@mail.ru
俄罗斯联邦, St. Petersburg, 199053

V. Malevich

B.I. Stepanov Institute of Physics

Email: nnrosanov@mail.ru
白俄罗斯, Minsk, 220072

G. Sinitsyn

B.I. Stepanov Institute of Physics

Email: nnrosanov@mail.ru
白俄罗斯, Minsk, 220072

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