Title :
Room Temperature Lasing Characteristics in Metal-Coated GaN Spiral and Grating Structures
Author :
Wei-Chun Liao ; Shu-Wei Liao ; Kuo-Ju Chen ; Min-Hsiung Shih ; Hao-Chung Kuo ; Tien-Chang Lu ; Shing-Chung Wang
Author_Institution :
Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
We had investigated a metal-coated GaN spiral structure laser at room temperature. The lasing action was observed around 363 nm wavelength with a low threshold power density. We also compare the lasing characteristics from metal-coated GaN spiral and grating structures. The experiment results ensure the circular-polarized emission from the metal-coated GaN spiral laser.
Keywords :
III-V semiconductors; antireflection coatings; gallium compounds; light polarisation; semiconductor lasers; GaN; circular-polarized emission; metal-coated gallium nitride grating structure laser; metal-coated gallium nitride spiral structure laser; room temperature lasing characteristics; temperature 293 K to 298 K; threshold power density; Gallium nitride; Gratings; Laser excitation; Laser modes; Pump lasers; Spirals; GaN; Semiconductor laser; Surface plasmon;
Conference_Titel :
Semiconductor Laser Conference (ISLC), 2014 International
Conference_Location :
Palma de Mallorca
Print_ISBN :
978-1-4799-5721-7
DOI :
10.1109/ISLC.2014.245
