Effect of UV Laser Conditioning on the Structure of KDP Crystal | Zendy

Decheng Guo | Zendy; Xiaodong Jiang | Zendy; Jing Huang | Zendy; Fengrui Wang | Zendy; Hongjie Liu | Zendy; Xiaotao Zu | Zendy

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Effect of UV Laser Conditioning on the Structure of KDP Crystal

Author(s) -

Decheng Guo,

Xiaodong Jiang,

Jing Huang,

Fengrui Wang,

Hongjie Liu,

Xiaotao Zu

Publication year - 2014

Publication title -

advances in condensed matter physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.314

H-Index - 26

eISSN - 1687-8124

pISSN - 1687-8108

DOI - 10.1155/2014/451048

Subject(s) - fluence , materials science , laser , raman spectroscopy , photothermal therapy , irradiation , optics , absorption (acoustics) , ultraviolet , crystal (programming language) , optoelectronics , nanotechnology , composite material , physics , computer science , nuclear physics , programming language

Multiparametric raster scanning experiments for KDP crystals are carried out to study the laser conditioning efficiency as a function of laser fluence, fluence step, and pulse sequence by using ultraviolet (UV) laser irradiation with pulse duration of approximately 7 ns. It indicates that damage resistance of KDP can be enhanced after conditioning process. And laser conditioning efficiency depends on the maximal fluence which is below the damage threshold. Raman spectra and photothermal absorption have also been studied on KDP crystals before and after multiparametric laser conditioning. Photothermal absorption data reveal that absorbance of conditioned KDP crystal decreases with the increase of laser fluence and the damage threshold of low absorption area is higher. Raman analysis reveals that the effectiveness of laser conditioning relies mainly on the individual mode of PO4 molecule

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