標題: Room-temperature operation of optically pumped blue-violet GaN-based vertical-cavity surface-emitting lasers fabricated by laser lift-off
作者: Chu, JT
Lu, TC
Yao, HH
Kao, CC
Liang, WD
Tsai, JY
Kuo, HC
Wang, SC
光電工程學系
Department of Photonics
關鍵字: GaN;vertical-cavity surface-emitting laser;laser lift-off
公開日期: 1-四月-2006
摘要: Room-temperature optically pumped GaN-based vertical-cavity surface- emitting lasers (VCSELs) were demonstrated by laser lift-off. A VCSEL was fabricated by combining a GaN-based cavity with two dielectric distributed Bragg reflectors: SiO2/TiO2 and SiO2/Ta2O5. The Q factor of the VCSEL is 518 indicating a good interfacial layer quality of the structure. The laser emits blue-violet wavelength light at 414 nm under optical pumping at room temperature with a threshold pumping energy of 270 nJ. The laser emission has a narrow linewidth of 0.25 nm and a degree of polarization of 70%. The laser emission patterns clearly indicate a vertical lasing action of the VCSEL.
URI: http://dx.doi.org/10.1143/JJAP.45.2556
http://hdl.handle.net/11536/12408
ISSN: 0021-4922
DOI: 10.1143/JJAP.45.2556
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
Volume: 45
Issue: 4A
起始頁: 2556
結束頁: 2560
顯示於類別:期刊論文


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  1. 000237098800036.pdf