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Kvantovaya Elektronika, 2020 Volume 50, Number 1, Pages 61–68 (Mi qe17178)

This article is cited in 10 papers

Topical issues of biophotonics

Assessment of the degree of hydration of ocular surface tissues using THz reflectometry

E. A. Kekkonenab, A. A. Konovkoab, Yu. S. Leec, I.-M. Leec, I. A. Ozheredovabd, K. H. Parkc, T. N. Safonovae, E. I. Sikache, A. P. Shkurinovabd

a Faculty of Physics, Lomonosov Moscow State University
b International Laser Center of Moscow State University
c Electronics and Telecommunications Research Institute, Republic of Korea
d Institute on Laser and Information Technologies, Russian Academy of Scienses, Shatura, Moskovskaya obl.
e Research Institute of Eye Diseases, Russian Academy of Medical Sciences, Moscow

Abstract: Using the effective medium model, the complex permittivity of the ocular surface system in the THz frequency range is considered. The penetration depth of THz radiation and the sensitivity of the reflected component to the dynamics of evaporation of the tear film are discussed. The results of in vivo experiments aimed to determine the reflection coefficient of the ocular surface using continuous THz reflectometers are well described using the developed model.

Keywords: ocular surface, THz radiation, effective medium model, cornea of the eye.

Received: 27.11.2019


 English version:
Quantum Electronics, 2020, 50:1, 61–68

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© Steklov Math. Inst. of RAS, 2024