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GaN vertical-cavity...
GaN vertical-cavity surface-emitting laser with a high-contrast grating reflector
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- Chang, Tsu-Chi, 1990 (författare)
- National Chiao Tung University
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- Kuo, Shuo-Yi (författare)
- National Chiao Tung University
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- Hashemi, Seyed Ehsan, 1986 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Haglund, Åsa, 1976 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lu, Tien-chang (författare)
- National Chiao Tung University
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(creator_code:org_t)
- SPIE, 2018
- 2018
- Engelska.
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Ingår i: Proceedings of SPIE - The International Society for Optical Engineering. - : SPIE. - 0277-786X .- 1996-756X. ; 10542
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- We report a GaN-based VCSEL with a high-contrast grating (HCG) as the top mirror. The HCG consisted of TiO2 and rested directly on the n-GaN without an airgap or the use of any DBR layers to boost the reflectivity. The full VCSEL structure was optically pumped at room temperature and showed a lasing threshold of approximately 0.69MW/cm2 and a lasing wavelength at 369.1 nm. This first demonstration of lasing in a HCG GaN-based VCSEL opens up the possibility to explore all the potential benefits of HCGs in the blue and ultraviolet spectral regime.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- GaN
- high contrast grating (HCG)
- vertical cavity surface emitting laser (VCSEL)
- TiO2
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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