Numerical simulation of plane target in airflow under laser irradiation

Peng, 胡鹏 Hu; Faliang, 陈发良 Chen

doi:10.3788/hplpb20112307.1935

Cited by 3 publications

(1 citation statement)

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“…According to ISO 11254-2:2000, LIDT of lm was tested by Nd: YAG pulsed laser (355 nm, 6.4 ns) in "R-on-1" mode. Based on the standing wave theory, Chen et al [20] used a theoretical model of high energy absorption at the surface and interface to describe laser damage to optical multilayers. The theoretical results show that the energy absorption mainly depends on the distribution of the standing wave and extinction coe cient of the material.…”

Section: Of Lidt Of the Coatingsmentioning

confidence: 99%

Preparation of contamination-resistant ultraviolet broadband double-layer antireflective coating

Wang,

Jin,

Xiao

et al. 2024

Preprint

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A double-layer broadband antireflection (AR) coating with excellent transmittance at 250–400 nm has been designed and prepared by the sol-gel method. The quarter-half double-layer structure is optimized with the aid of Filmstar thin film design software. Mesoporous SiO2 film templated by an ethylene oxide-propylene oxide-ethylene oxide triblock copolymer is used as the top layer, and a ZrO2-SiO2 hybrid film with matching refractive index is employed as the bottom layer. 1H, 1H, 2H, 2H-Perfluorodecyltriethoxysilane is used to modify the surface of the AR coating, which greatly improves the environmental stability of the coating. The obtained double-layer AR coating can achieve an average transmittance of 99.34% in the wavelength range of 250–400 nm. The laser induced damage threshold of the coating is measured using a 355 nm laser (pulse width: 6.4 ns), and the results show that the damage threshold is 2.24 J·cm− 2. This study provides a new way for the preparation of UV AR coatings with good optical performance and environmental stability.

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Section: Of Lidt Of the Coatingsmentioning

confidence: 99%