高功率连续波激光束加热反射镜瞬态热弹性变形的分析模型

P. Hello, J. Vinet
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引用次数: 65

摘要

研究了部分强激光束加热大质量反射镜的像差。固体基材中产生的非均匀温度场引起热弹性变形,在特殊的轴对称假设下,首先在稳态状态下,然后在瞬态状态下,我们给出了解析模型和数值评价:非均匀干涉和像差引起的镜面质量和激光强度、激光强度、反射强度和基材质量模态。温度分布、基材产物、变形、热弹性、模型、分析、评价、模型、特别是轴向对称分布、稳态分布、状态过渡分布
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Analytical models of transient thermoelastic deformations of mirrors heated by high power cw laser beams
We study the aberrations of massive mirrors heated by partial of intense laser beams in the coating or in the bulk. The non-uniform temperature field generated in the solid substrate induce thermoelastic deformations for which with the special assumption of axial symmetry, we give analytical models and numerical evaluations, first in the steady state, then in the transient regime Nous nous interessons aux aberrations causees aux miroirs massifs par des faisceaux laser intenses echauffant les couches reflechissantes ou la masse meme du substrat. La distribution de temperature engendree dans le substrat produit des deformations thermoelastiques dont nous donnons des modeles analytiques et des evaluations numeriques dans le cas particulier de la symetrie axiale, tout d'abord dans l'etat stationnaire, puis dans le regime transitoire
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