Analysis of torque mounting configuration for nonlinear optics with large aperture

Liang, Yingchun; Su, Ruifeng; Liu, Haitao; Lu, Lihua

doi:10.1016/j.optlastec.2013.11.017

Cited by 12 publications

(2 citation statements)

References 22 publications

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“…The basic solution idea is to divide the computational domain into a finite number of non-overlapping units and solve the differential equations discretely. 22 …”

Section: Theoretical Analysismentioning

confidence: 99%

Investigation of a low-stress and low-contamination clamping method for large-aperture optics

et al. 2019

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Motivated by the need to decrease initial contact seal stress on Nd:glass coated with SiO2 sol–gel film and effectively control the surface contaminants from film debris induced by stress in the assembly process, a novel vacuum clamping method is studied to achieve the purpose of low stress and low contamination. In this article, theoretical analyses, numerical simulations, and field experiments are used to verify the feasibility of this method. Mechanical simulation results indicate that under the same radial compression conditions, the higher the hollowness of the O-ring rubber, the less the contact stress on Nd:glass. In addition, microstructures of the SiO2 sol–gel film are observed by scanning electron microscopy, and the damage mechanism is analyzed in order to optimize assembly stress. By optimizing the distribution of hollowness, the honeycomb structure is proved to have lower contact stress due to its larger deformation. Finally, experimental results verify that the low-stress vacuum clamping method can meet the strict surface cleanliness requirements of Nd:glass. This study also provides a promising method for clean assembly of other large-aperture optics.

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“…The basic solution idea is to divide the computational domain into a finite number of non-overlapping units and solve the differential equations discretely. 22 …”

Section: Theoretical Analysismentioning

confidence: 99%

Investigation of a low-stress and low-contamination clamping method for large-aperture optics

et al. 2019

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“…1 In the recent development of frequency conversion technology, KDP crystals with a large aperture and high uniformity of temperature distribution are required. For example, in inertial confinement fusion (ICF) devices, the dimensions of the crystal can reach 200 × 200 × 20 mm 3 ; 2 however, the overall temperature difference of the crystal should be less than 0.1°C. 3 Crystal and metal materials are usually clamped together in optical devices, and the crystal temperature sensors controlled by the heating source is installed on the metal.…”

Section: Introductionmentioning

confidence: 99%

A two-parameter model for predicting thermal contact resistance between crystal and aluminum alloy based on turning morphology

Zhang

Sun

2021

Proceedings of the Institution of Mechanical Engineers, Part B:

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Thermal contact resistance (TCR) is a key factor in thermal engineering which affects the thermal-structural design of precision instruments. To reveal the influence of turning morphology on the TCR between potassium dihydrogen phosphate (KDP) crystal and aluminum alloy, a novel simplified model considering two parameters of wavelength and slope is proposed. Meanwhile, the TCR of KDP crystal and aluminum alloy are experimentally investigated to validate this two-parameter model, where the effects of different wavelengths and slopes on Mises stress distribution, temperature distribution, heat flux and TCR can be analyzed. By incorporating the theory of plane turning, the TCR can be reduced by controlling the feed rate and cutting thickness under a certain roughness. This research provides a theoretical basis for the thermal-structural design of crystal modules and the turning of aluminum alloy.

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Surface error modeling, evaluation and optimization of large optics in inertial confinement fusion laser system

Wang

Zhang

Liu

et al. 2018

Fusion Engineering and Design

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Analysis of torque mounting configuration for nonlinear optics with large aperture

Cited by 12 publications

References 22 publications

Investigation of a low-stress and low-contamination clamping method for large-aperture optics

Investigation of a low-stress and low-contamination clamping method for large-aperture optics

A two-parameter model for predicting thermal contact resistance between crystal and aluminum alloy based on turning morphology

Surface error modeling, evaluation and optimization of large optics in inertial confinement fusion laser system

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