Three-dimensional measurement of laser-induced thermal mirror dynamics using photothermal vortex interferometer with azimuthal phase spectra analysis

Dong, Jingtao; Li, Yangyang; Zhao, Enxi; Xie, Liyuan; Tian, Zhipeng; Xie, Xinglong

doi:10.1016/j.measurement.2023.113653

Measurement

2023

DOI: 10.1016/j.measurement.2023.113653

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Three-dimensional measurement of laser-induced thermal mirror dynamics using photothermal vortex interferometer with azimuthal phase spectra analysis

Jingtao Dong,

Yangyang Li,

Enxi Zhao

et al.

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2024

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Cited by 2 publications

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Optical vortex interferometer: An overview of interferogram demodulation methods for dynamic phase measurement

Dong,

Zhao,

Xie

et al. 2024

Optics and Lasers in Engineering

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Optical vortex interferometer: An overview of interferogram demodulation methods for dynamic phase measurement

Dong,

Zhao,

Xie

et al. 2024

Optics and Lasers in Engineering

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Observation of dynamic nanoscale thermal expansion in mirrors and graphene-aided heat dissipation by an advanced chromatic confocal microscopy

Tseng,

Pan,

Liao

et al. 2024

Applied Physics Letters

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In this Letter, dynamic nano-thermal expansion images of reflective mirrors from high-intensity incident laser beams were observed in situ. The inspections are based on rapid 3D surface morphology changes on the reflective surfaces, captured by a Chromatic Confocal Microscope with Nanoscale Sensitivity (CCMNS). Nano-expansions of two types of coatings were studied: the E02 dielectric coating (coating 1) and the graphene-on-E02 complex film (coating 2), both applied to the same fused silica substrate. The superior thermal dissipation properties of coating 2, including enhanced heat dissipation, suppressed wavefront distortion, and its unique negative expansion coefficient, were observed. In addition to studying the effects of graphene coating, the CCMNS demonstrates an accurate and efficient approach for evaluating reflective mirrors. Moreover, the proposed methodology possesses enormous potential across various fields, ranging from estimating photonic elements dealing with high-intensity beams to physical thermal conductivity measurements.

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Three-dimensional measurement of laser-induced thermal mirror dynamics using photothermal vortex interferometer with azimuthal phase spectra analysis

Cited by 2 publications

References 47 publications

Optical vortex interferometer: An overview of interferogram demodulation methods for dynamic phase measurement

Optical vortex interferometer: An overview of interferogram demodulation methods for dynamic phase measurement

Observation of dynamic nanoscale thermal expansion in mirrors and graphene-aided heat dissipation by an advanced chromatic confocal microscopy

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