Research output: Contribution to journal › Article › peer-review
Precise Measurement of the Optical Characteristics of the Subsurface Layer of Solids. / Fedyukhin, L. A.; Gorchakov, A. V.; Korobeishchikov, N. G. et al.
In: JETP Letters, Vol. 114, No. 5, 3, 09.2021, p. 256-262.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Precise Measurement of the Optical Characteristics of the Subsurface Layer of Solids
AU - Fedyukhin, L. A.
AU - Gorchakov, A. V.
AU - Korobeishchikov, N. G.
AU - Nikolaev, I. V.
N1 - Funding Information: This work was supported by the Russian Foundation for Basic Research and Novosibirsk region (project no. 20-42-540004, measurements) and by the Russian Science Foundation (project no. 21-19-00046, preparation of the samples). Publisher Copyright: © 2021, Pleiades Publishing, Inc.
PY - 2021/9
Y1 - 2021/9
N2 - A measurement method and a calculation algorithm based on the three-layer structure model have been proposed for the refractive index of optical materials. The method has been experimentally tested with refractive index standards. The uniqueness of the reconstruction of the refractive indices of the substrate and subsurface layer, as well as the thickness of the layer, from the measured reflection coefficient of probe radiation near the Brewster angle and the angle of normal incidence has been demonstrated numerically. The measurements of the refractive index of the subsurface layer with an absolute error of 10–4 and the thickness of the subsurface layer with a confidence error of 1 nm have been performed for the first time.
AB - A measurement method and a calculation algorithm based on the three-layer structure model have been proposed for the refractive index of optical materials. The method has been experimentally tested with refractive index standards. The uniqueness of the reconstruction of the refractive indices of the substrate and subsurface layer, as well as the thickness of the layer, from the measured reflection coefficient of probe radiation near the Brewster angle and the angle of normal incidence has been demonstrated numerically. The measurements of the refractive index of the subsurface layer with an absolute error of 10–4 and the thickness of the subsurface layer with a confidence error of 1 nm have been performed for the first time.
UR - http://www.scopus.com/inward/record.url?scp=85118540979&partnerID=8YFLogxK
U2 - 10.1134/S0021364021170069
DO - 10.1134/S0021364021170069
M3 - Article
AN - SCOPUS:85118540979
VL - 114
SP - 256
EP - 262
JO - JETP Letters
JF - JETP Letters
SN - 0021-3640
IS - 5
M1 - 3
ER -
ID: 34606273