{"title":"Optimization of the Reflective Surface Shape of a Variable Curvature Mirror","authors":"A. S. Mokeev","doi":"10.3103/S1068335624600189","DOIUrl":null,"url":null,"abstract":"<p>We report a computational and theoretical study of the shape of a reflective surface of a variable curvature mirror (VCM) with a different thickness distribution along the mirror radius. An analytical expression is proposed for the thickness distribution and a deviation of the reflective VCM surface shape with such a distribution from the parabolic shape is assessed in comparison with the exponential and cycloid thickness profiles known in the literature. It is shown that the use of the proposed thickness distribution can significantly reduce spherical aberration and improve the quality of the shape of the reflective VCM surface in the focal length range from 50 to 500 m. It is assumed that this VCM design can be used in an optical system for laser cutting of metal structures.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Lebedev Physics Institute","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.3103/S1068335624600189","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
We report a computational and theoretical study of the shape of a reflective surface of a variable curvature mirror (VCM) with a different thickness distribution along the mirror radius. An analytical expression is proposed for the thickness distribution and a deviation of the reflective VCM surface shape with such a distribution from the parabolic shape is assessed in comparison with the exponential and cycloid thickness profiles known in the literature. It is shown that the use of the proposed thickness distribution can significantly reduce spherical aberration and improve the quality of the shape of the reflective VCM surface in the focal length range from 50 to 500 m. It is assumed that this VCM design can be used in an optical system for laser cutting of metal structures.
期刊介绍：
Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.
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