Room-temperature operation of optically pumped blue-violet GaN-based vertical-cavity surface-emitting lasers fabricated by laser lift-off

被引：31

作者：

Chu, JT

Lu, TC

Yao, HH

Kao, CC

Liang, WD

Tsai, JY

Kuo, HC

Wang, SC

机构：

[1] Natl Chiao Tung Univ, Dept Photon, Hsinchu 300, Taiwan

[2] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 300, Taiwan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 4A期

关键词：

GaN; vertical-cavity surface-emitting laser; laser lift-off;

D O I：

10.1143/JJAP.45.2556

中图分类号：

O59 [应用物理学];

学科分类号：

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.

引用

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页码：2556 / 2560

页数：5

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