Fabrication of magneto-optical microstructure by femtosecond laser pulses

被引：5
|
作者：
Li, Yudong [1 ]
Gao, Xiangyang
Jiang, Meiling
Sun, Qian
Tian, Jianguo
机构：
[1] Nankai Univ, Key Lab Weak Light Nonlinear Photon, Minist Educ, Sch Phys, Tianjin 300071, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2012年 / 10卷 / 10期
基金：
中国国家自然科学基金;
关键词：
OPTICAL-ABSORPTION; WAVE-GUIDES; INTERFERENCE;
D O I：
10.3788/COL201210.102201
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate femtosecond laser direct writing (FLDW) in the fabrication of magneto-optical (MO) microstructures. The experimental results show that FDLW can introduce positive refractive index change in the MO materials. With the increase of the writing intensity of femtosecond laser pulses, refractive index change increases, whereas Verdet constant of the damaged area decreases nonlinearly. With suitable writing intensity, we obtain a single-mode waveguide in which Verdet constant is 80% of the bulk MO glass.
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页数：3
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