Fixed Focus Grating Reflector Based on Hybrid Optimization Method

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Photonics Technology Letters Pub Date : 2024-11-22 DOI:10.1109/LPT.2024.3504824

Junjing Huang;Xiaofeng Duan;Kai Liu;Yongqing Huang;Xiaomin Ren

引用次数: 0

Abstract

In this letter, we proposed a hybrid design method based on rigorous coupled wave analysis (RCWA) and velocity varying climbing particle swarm optimization (VVCPSO) to realize a focal shift eliminating grating reflector. we proved that the focusing reflector obtained by the hybrid design method can eliminate the focal shift of

$5\mu $

m (the focal length is

$100\mu $

m), improve the reflectivity and focusing efficiency by 14% and 17%, and achieve a full width at half maxima (FWHM) of

$0.52\mu $

m, which is considerably smaller than the

$3.5\mu $

m of the focusing reflector obtained solely through RCWA. Therefore, this method has a far-reaching influence on the design of fixed focus grating structure.

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基于混合优化方法的定焦光栅反射器

本文提出了一种基于严格耦合波分析（RCWA）和变速爬升粒子群优化（VVCPSO）的混合设计方法来实现光栅反射镜的焦移消除。我们证明了采用混合设计方法获得的聚焦反射器可以消除$5\mu $ m的焦移（焦距为$100\mu $ m），提高了14%和17%的反射率和聚焦效率，实现了$0.52\mu $ m的半最大值全宽度（FWHM），大大小于单独采用RCWA方法获得的聚焦反射器的$3.5\mu $ m。因此，该方法对定焦光栅结构的设计具有深远的影响。

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

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.