Direct optimal calculation method for obtaining the thickness and complex refractive index of chalcogenide glass films

Yue Zhang; Yao Zhou; Yinghao Cao; Jianxing Zhao; Rui Hong; Jiaxuan Ren; Gong Zhang; Shigeng Song; Chonge Wang; Yinglin Song; Jianhong Zhou

doi:10.1007/s00340-025-08526-8

Direct optimal calculation method for obtaining the thickness and complex refractive index of chalcogenide glass films

Yue Zhang
, Yao Zhou
, Yinghao Cao
, Jianxing Zhao
, Rui Hong
, Jiaxuan Ren
, Gong Zhang
, Shigeng Song
, Chonge Wang
, Yinglin Song
, Jianhong Zhou^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

A direct optimal calculation method was proposed to determine the thickness, refractive index, and extinction coefficient of thin films solely from experimental transmittance data. Unlike conventional approaches, this method does not rely on any dispersion model. Numerical and experimental analyses confirm its accuracy. The variations in refractive index and extinction coefficient curves demonstrate the chemical bond properties of chalcogenide films. This work provides a useful method for analyzing the optical parameters of the optical films.

Original language	English
Article number	163
Number of pages	7
Journal	Applied Physics B
Volume	131
DOIs	https://doi.org/10.1007/s00340-025-08526-8
Publication status	Published - 21 Jul 2025

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2025 07 01 Zhang et al Calculation accepted - for Pure
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Cite this

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title = "Direct optimal calculation method for obtaining the thickness and complex refractive index of chalcogenide glass films",

abstract = "A direct optimal calculation method was proposed to determine the thickness, refractive index, and extinction coefficient of thin films solely from experimental transmittance data. Unlike conventional approaches, this method does not rely on any dispersion model. Numerical and experimental analyses confirm its accuracy. The variations in refractive index and extinction coefficient curves demonstrate the chemical bond properties of chalcogenide films. This work provides a useful method for analyzing the optical parameters of the optical films.",

author = "Yue Zhang and Yao Zhou and Yinghao Cao and Jianxing Zhao and Rui Hong and Jiaxuan Ren and Gong Zhang and Shigeng Song and Chonge Wang and Yinglin Song and Jianhong Zhou",

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T1 - Direct optimal calculation method for obtaining the thickness and complex refractive index of chalcogenide glass films

AU - Zhang, Yue

AU - Zhou, Yao

AU - Cao, Yinghao

AU - Zhao, Jianxing

AU - Hong, Rui

AU - Ren, Jiaxuan

AU - Zhang, Gong

AU - Song, Shigeng

AU - Wang, Chonge

AU - Song, Yinglin

AU - Zhou, Jianhong

PY - 2025/7/21

Y1 - 2025/7/21

N2 - A direct optimal calculation method was proposed to determine the thickness, refractive index, and extinction coefficient of thin films solely from experimental transmittance data. Unlike conventional approaches, this method does not rely on any dispersion model. Numerical and experimental analyses confirm its accuracy. The variations in refractive index and extinction coefficient curves demonstrate the chemical bond properties of chalcogenide films. This work provides a useful method for analyzing the optical parameters of the optical films.

AB - A direct optimal calculation method was proposed to determine the thickness, refractive index, and extinction coefficient of thin films solely from experimental transmittance data. Unlike conventional approaches, this method does not rely on any dispersion model. Numerical and experimental analyses confirm its accuracy. The variations in refractive index and extinction coefficient curves demonstrate the chemical bond properties of chalcogenide films. This work provides a useful method for analyzing the optical parameters of the optical films.

U2 - 10.1007/s00340-025-08526-8

DO - 10.1007/s00340-025-08526-8

M3 - Article

VL - 131

JO - Applied Physics B

JF - Applied Physics B

M1 - 163

ER -

Direct optimal calculation method for obtaining the thickness and complex refractive index of chalcogenide glass films

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