Comparative analysis of light transmission in thin-film materials across multiple laser wavelengths using partial least squares regression

IF 4.2 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-09-27 DOI:10.1016/j.optmat.2025.117566

Ahmed Abdelhady A. Khalil , Omnia Hamdy

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引用次数: 0

Abstract

Thin-film composites have significance in optoelectronics, photonics, and sensing technologies because of their unique optical properties. This work examines the light transmission behavior of six thin-film materials: Cu, ZnO, Ni, MoS₂, MoS₂–SiC, and ITO/MoS₂ under continuous wave (CW) laser irradiation at wavelengths of 405, 532, 670, 830, and 980 nm. The experimental results were analyzed using Partial Least Squares Regression (PLSR) to derive material-specific optical fingerprints and multivariate spectral responses. The PLSR model achieved a root mean squared error (RMSE) of 3305.17 and identified more than 95 % of the variance with five latent components. MoS₂ had the highest transmission at 405 nm, followed by Ni at 532 and 980 nm, and ZnO at 830 nm. Cu continuously had the lowest transmission. These findings provide important insights into the wavelength-dependent behavior of thin films and can help guide material selection and optimization for application in transparent electrodes, optical coatings, photodetectors, and laser-based systems.

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利用偏最小二乘回归对薄膜材料在多个激光波长上的光传输进行比较分析

薄膜复合材料以其独特的光学特性在光电子学、光子学和传感技术中具有重要意义。本文研究了Cu、ZnO、Ni、MoS2、MoS2 - sic和ITO/MoS2等六种薄膜材料在波长为405、532、670、830和980 nm的连续波（CW）激光照射下的光传输行为。利用偏最小二乘回归（PLSR）对实验结果进行分析，得出材料特异性光学指纹图谱和多元光谱响应。PLSR模型的均方根误差（RMSE）为3305.17，通过5个潜在成分识别出95%以上的方差。MoS2在405 nm处透射率最高，其次是Ni在532和980 nm处，ZnO在830 nm处。铜的透射率一直最低。这些发现为了解薄膜的波长依赖行为提供了重要的见解，并有助于指导材料的选择和优化，用于透明电极、光学涂层、光电探测器和基于激光的系统。

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

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.