%0 Journal Article
%T Effect of Electric Filed Enhancement on Laser-induced Damage Morphology of Multi-layer Dielectric Grating<br>电场的增强作用对介质膜光栅损伤形貌的影响(英文)
%A KONG Wei-jin
%A LIU Shi-jie
%A FAN Zheng-xiu
%A SHAO Jian-da
%A <br>孔伟金
%A 刘世杰
%A 范正修
%A 邵建达
%J 光子学报
%D 2009
%I 
%X The effect of electric field enhancement on laser-induced damage morphology of multi-layer dielectric gratings was investigated. Electric field distribution was calculated by using the Fourier mode method. Numerical treatment shows that the peak electric field occurs at the groove edge opposite to the incident direction by nearly a magnitude of two. Laser-induced damage threshold of 6.61 J/cm2 was obtained for 12 ns pulses at 1 064 nm with TE mode and 51.2° incident. Scanning electron microscopy (SEM) of damage morphology shows that the initial damage occurs from the place where the electric filed is strongly enhanced.
%K Electric field enhancement
%K Laser induced damage threshold
%K Multi-layer dielectric grating<br>激光损伤阈值
%K 电场增强
%K 介质膜光栅
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=7CE43A7C9C0594F90D9737EFEAE926A0&yid=DE12191FBD62783C&vid=16D8618C6164A3ED&iid=0B39A22176CE99FB&sid=88D36036CFF69B3C&eid=DFEE4E8C33C95CEF&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=14