Band-edge lasing and miniband lasing in 1-D dual-periodic photonic crystal

被引：0
作者：
Ying, Cui-Feng [1 ]
Zhou, Wen-Yuan [1 ]
Li, Yi [1 ]
Ye, Qing [1 ]
Zhang, Chun-Ping [1 ]
Tian, Jian-Guo [1 ]
机构：
[1] Nankai Univ, Sch Phys, Minist Educ, Key Lab Weak Light Nonlinear Photon, Tianjin 300071, Peoples R China
来源：
PHOTONIC CRYSTAL MATERIALS AND DEVICES X | 2012年 / 8425卷
关键词：
photonic miniband; dual-periodic photonic crystal; band-edge lasing; fluorescence enhancement; light-matter interaction; microstructure fabrication; dichromated gelatin; dye laser; SLOW-LIGHT; LASER;
D O I：
10.1117/12.919840
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Herein, we report two different dual-periodic Photonic Crystals (PCs) in dichromated gelatin emulsion which are fabricated by four-beam holography and double-exposure holography. The minibands with high Q-factors have been evidently located in both two structures. By taking into account the non-uniform distribution of material, the numerical results agree quite well with the experimental results. We also compared the band-edge lasing in single-periodic PC and miniband lasing in Moire dual-periodic PC. Due to extremely flat dispersion and large mode volume of the miniband, high optical conversion efficiency in miniband lasing is achieved as compared with that of band-edge lasing. Such effect may provide potential applications in low-threshold lasers and ultra-sensitive fluorescent probes in biological assays.
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页数：6
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