Zirconium-doped hybrid films patterned by soft lithography for distributed-feedback lasers

被引：4
|
作者：
Chen, L. [1 ]
Zhou, Q. [1 ]
Li, S. [1 ]
Cai, Z. [1 ]
Liu, S. [2 ]
Ren, X. [2 ]
机构：
[1] Xiamen Univ, Dept Elect Engn, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2010年 / 101卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
NONLINEAR-OPTICAL APPLICATIONS; SOL-GEL; GRATINGS;
D O I：
10.1007/s00340-010-4035-5
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Zirconium (Zr)-doped hybrid films containing Rhodamine 6G (Rh6G) were prepared by spin-coating on glass substrates with different Zr-Si molar ratio. Second-order distributed-feedback (DFB) resonators with large surface-relief modulation depth over 160 nm could be fabricated by soft lithographic technique using a polydimethylsiloxane (PDMS) replica. Optically pumped by a pulsed frequency-doubled Q-switched Nd:YAG laser, the emission wavelength of the DFB-lasers can be tuned over 16 nm by changing the grating period. With the optimization of the Zr-Si molar ratio, low laser threshold of 3 mu J/mm(2) was obtained.
引用
收藏
页码：207 / 211
页数：5
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