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

IF 2 3区物理与天体物理 Q3 OPTICS

Applied Physics B Pub Date : 2025-07-21 DOI:10.1007/s00340-025-08526-8

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

引用次数: 0

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.

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硫系玻璃薄膜厚度和复折射率的直接优化计算方法

提出了一种仅根据实验透射率数据确定薄膜厚度、折射率和消光系数的直接优化计算方法。与传统方法不同，该方法不依赖于任何色散模型。数值和实验分析证实了该方法的准确性。折射率和消光系数的变化曲线表明了硫系化合物薄膜的化学键性质。这为分析光学薄膜的光学参数提供了一种有用的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Physics B 物理-光学

CiteScore

4.00

自引率

4.80%

发文量

202

审稿时长

3.0 months

期刊介绍： Features publication of experimental and theoretical investigations in applied physics Offers invited reviews in addition to regular papers Coverage includes laser physics, linear and nonlinear optics, ultrafast phenomena, photonic devices, optical and laser materials, quantum optics, laser spectroscopy of atoms, molecules and clusters, and more 94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again Publishing essential research results in two of the most important areas of applied physics, both Applied Physics sections figure among the top most cited journals in this field. In addition to regular papers Applied Physics B: Lasers and Optics features invited reviews. Fields of topical interest are covered by feature issues. The journal also includes a rapid communication section for the speedy publication of important and particularly interesting results.