Scaling law in thermal deformation of high reflecting mirror under laser irradiation

He Minbo; Jiang Houman

doi:10.3788/HPLPB20122409.2043

Volume 24 Issue 09

Aug. 2012

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He Minbo, Jiang Houman. Scaling law in thermal deformation of high reflecting mirror under laser irradiation[J]. High Power Laser and Particle Beams, 2012, 24: 2043-2046. doi: 10.3788/HPLPB20122409.2043

Citation:

He Minbo, Jiang Houman. Scaling law in thermal deformation of high reflecting mirror under laser irradiation[J]. High Power Laser and Particle Beams, 2012, 24: 2043-2046. doi: 10.3788/HPLPB20122409.2043

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Scaling law in thermal deformation of high reflecting mirror under laser irradiation

doi: 10.3788/HPLPB20122409.2043

He Minbo,
Jiang Houman^,

1.
College of Opto-electric Science and Engineering,National University of Defense Technology,Changsha 410073,China

Received Date: 2011-12-20
Rev Recd Date: 2012-02-09
Publish Date: 2012-08-24

Abstract

Abstract

Based on the thermal elastic model with thermal-mechanical uncoupling approximation and commonly-used assumptions, the scaling law in thermal deformation of high reflecting mirror under laser irradiation is obtained by equation analysis. For the same model, displacement, temperature rise, stress and strain change linearly with laser power density. The numerical results are consistent with the theory. The conclusions lay the foundation for using scaled small model to investigate the thermal deformation of large-size mirror under laser irradiation, and provide specific guidelines for the model designing and transforming experiment results to the prototype.
- high reflecting mirror,
- thermal deformation,
- scaling law,
- laser irradiation

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