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Low-threshold photonic-band-edge laser using iron-nail-shaped rod array

Authors
Choi, Jae-HyuckNo, You-ShinHwang, Min-SooKwon, Soon-YongJeong, Kwang-YongKwon, Soon-HongYang, Jin-KyuPark, Hong-Gyu
Issue Date
3-3월-2014
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.104, no.9
Indexed
SCIE
SCOPUS
Journal Title
APPLIED PHYSICS LETTERS
Volume
104
Number
9
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/99039
DOI
10.1063/1.4867886
ISSN
0003-6951
Abstract
We report the experimental demonstration of an optically pumped rod-type photonic-crystal band-edge laser. The structure consists of a 20 x 20 square lattice array of InGaAsP iron-nail-shaped rods. A single-mode lasing action is observed with a low threshold of similar to 90 mu W and a peak wavelength of 1451.5nm at room temperature. Measurements of the polarization-resolved mode images and lasing wavelengths agree well with numerical simulations, which confirm that the observed lasing mode originates from the first Gamma-point transverse-electric-like band-edge mode. We believe that this low-threshold band-edge laser will be useful for the practical implementation of nanolasers. (C) 2014 AIP Publishing LLC.
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