Far- and near-field investigations on the lasing modes in two-dimensional photonic crystal slab lasers

被引:31
|
作者
Shin, DJ [1 ]
Kim, SH [1 ]
Hwang, JK [1 ]
Ryu, HY [1 ]
Park, HG [1 ]
Song, DS [1 ]
Lee, YH [1 ]
机构
[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea
关键词
far-field; near-field; photonic crystal; semiconductor laser; whispering-gallery-like mode;
D O I
10.1109/JQE.2002.1017598
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present experimental investigations on the lasing modes in two-dimensional (2-D) hexagonal cavities defined by photonic crystals on slab waveguide structures. The far-field emission patterns and near-field intensity distributions of the lasing modes are analyzed in polarization-resolved 2-D angular distribution measurements and spectrally resolved near-field scanning optical microscopy. The far- and near-field analyses result in identification of the various lasing modes and their subsequent classification into one- and two-dimensional modes. In the one-dimensional modes oscillating between two parallel boundaries of the cavities, longitudinal and transverse modes are identified and found to have transverse-electric polarization. In the two-dimensional modes oscillating two-dimensionally in the cavities, various modes including whispering-gallery-like modes are observed and found to exhibit various polarization states.
引用
收藏
页码:857 / 866
页数:10
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