標題: | Lasing characteristics at different band edges in GaN photonic crystal surface emitting lasers |
作者: | Chen, S. W. Lu, T. C. Hou, Y. J. Liu, T. C. Kuo, H. C. Wang, S. C. 光電工程學系 Department of Photonics |
關鍵字: | gallium compounds;III-V semiconductors;photonic crystals;surface emitting lasers;wide band gap semiconductors |
公開日期: | 15-二月-2010 |
摘要: | We have investigated the lasing characteristics of GaN-based two-dimensional photonic crystal surface emitting lasers (PCSELs) with different PC lattice constants by using angled resolved spectroscopy. Due to the Bragg diffraction theory, normalized frequency of lasing wavelength of PCSELs can be exactly matched with three distinct band-edge frequencies (Gamma 1, K2, and M3) in the photonic band diagram. The three band-edge frequencies (Gamma 1, K2, and M3) have different emission angles corresponding to the normal direction of the sample (0 degrees, 29 degrees, and 59.5 degrees). |
URI: | http://dx.doi.org/10.1063/1.3313947 http://hdl.handle.net/11536/5832 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.3313947 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 96 |
Issue: | 7 |
結束頁: | |
顯示於類別: | 期刊論文 |