Generating optical vortex with computer-generated hologram fabricated inside glass by femtosecond laser pulses

被引：41
|
作者：
Guo, Zhongyi [1 ]
Qu, Shiliang [1 ]
Liu, Shutian [1 ]
机构：
[1] Harbin Inst Technol, Dept Optoelect Sci, Weihai 264209, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2007年 / 273卷 / 01期
关键词：
laser induced microexplosion; optical vortices; CGH;
D O I：
10.1016/j.optcom.2006.12.023
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We introduce a novel method to generate the optical vortex with computer-generated hologram (CGH) fabricated inside glass by femtosecond laser pulses. The CGH was directly written inside glass by femtosecond laser pulses induced microexplosion without any pre- or post-treatment of the material. We also realized the restructured optical vortex beams of both the transmission and reflection pattern with high fidelity using a collimated He Ne laser beam. The total diffractive efficiency of both the transmission and reflection pattern is about 4.79%. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：286 / 289
页数：4
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