Sensor for monitoring the vibration of a laser beam based on holographic polymer dispersed liquid crystal films

被引：20

作者：

Li, Ming Shian ^{[1
]}

Wu, Shing Trong ^{[2
]}

Fuh, Andy Ying-Guey ^{[1
,2
,3
]}

机构：

[1] Natl Cheng Kung Univ, Inst Electroopt Sci & Engn, Tainan 701, Taiwan

[2] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[3] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Tainan 701, Taiwan

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 25期

关键词：

4 NONCOPLANAR BEAMS; INTERFERENCE TECHNIQUE; UMBRELLALIKE BEAMS; FABRICATION; LATTICES; SPLITTER; STORAGE; SQUARE; SYSTEM;

D O I：

10.1364/OE.18.026300

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A continuous multiple exposure diffraction grating (CMEDG) is fabricated holographically on polymer dispersed liquid crystal (PDLC) films using two-beam interference with multiple exposures. The grating is fabricated by exposing a PDLC film to 18 repeated exposure/non-exposure cycles with an angular step of similar to 10 degrees/10 degrees while it revolves a circle on a rotation stage. The structure of the sample thus formed is analyzed using a scanning electron microscope (SEM) and shows arc-ripples around the center. From the diffraction patterns of the formed grating obtained using a normally incident laser beam, some or all of the 18 recorded arc beams can be reconstructed, as determined by the probing location. Thus, it can be applied for use as a beam-vibration sensor for a laser. (C)2010 Optical Society of America

引用

页码：26300 / 26306

页数：7

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