TITLE

Lasing characteristics at different band edges in GaN photonic crystal surface emitting lasers

AUTHOR(S)
Chen, S. W.; Lu, T. C.; Hou, Y. J.; Liu, T. C.; Kuo, H. C.; Wang, S. C.
PUB. DATE
February 2010
SOURCE
Applied Physics Letters;2/15/2010, Vol. 96 Issue 7, p071108
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
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 (Γ1, K2, and M3) in the photonic band diagram. The three band-edge frequencies (Γ1, K2, and M3) have different emission angles corresponding to the normal direction of the sample (0°, 29°, and 59.5°).
ACCESSION #
48199522

 

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