{"title":"Consideration of Reflection from the Back Surface During Laser Annealing of Optical Glass Plates with High Refractive Index Values","authors":"V. I. Butin, A. F. Kovalenko","doi":"10.1007/s10717-025-00776-4","DOIUrl":null,"url":null,"abstract":"<p>Within the framework of the quasi-static unrelated problem of thermoelasticity, a criterion for the thermal strength of a freely pinched plate during pulsed laser annealing is obtained, taking into account the reflection of laser radiation from the back surface of the plate. The possibility of reducing the maximum tensile stresses in the plate by 15 – 65% and energy costs for annealing by 8 – 30% is shown. It was established that consideration of the reflection of laser radiation from the back surface of the plate leads to a decrease in the interval of variations of the dimensionless parameter ÷<i>h</i> (the product of the absorption index by the plate thickness), in which thermoelastic stresses may cause plate destruction.</p>","PeriodicalId":579,"journal":{"name":"Glass and Ceramics","volume":"82 5-6","pages":"224 - 228"},"PeriodicalIF":0.6000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Glass and Ceramics","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10717-025-00776-4","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
Within the framework of the quasi-static unrelated problem of thermoelasticity, a criterion for the thermal strength of a freely pinched plate during pulsed laser annealing is obtained, taking into account the reflection of laser radiation from the back surface of the plate. The possibility of reducing the maximum tensile stresses in the plate by 15 – 65% and energy costs for annealing by 8 – 30% is shown. It was established that consideration of the reflection of laser radiation from the back surface of the plate leads to a decrease in the interval of variations of the dimensionless parameter ÷h (the product of the absorption index by the plate thickness), in which thermoelastic stresses may cause plate destruction.
期刊介绍：
Glass and Ceramics reports on advances in basic and applied research and plant production techniques in glass and ceramics. The journal''s broad coverage includes developments in the areas of silicate chemistry, mineralogy and metallurgy, crystal chemistry, solid state reactions, raw materials, phase equilibria, reaction kinetics, physicochemical analysis, physics of dielectrics, and refractories, among others.
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