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- Chang, Tsu-ChiNational Chiao Tung University (author)
GaN-based vertical-cavity surface-emitting laser incorporating a TiO2 high-index-contrast grating
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- SPIE,2020
Numbers
- LIBRIS-ID:oai:research.chalmers.se:ff0b7364-7409-46a1-8fcf-5932c42fa9cd
- https://doi.org/10.1117/12.2545315DOI
- https://research.chalmers.se/publication/518653URI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- We demonstrate the first electrically injected GaN-based VCSEL with a TiO2 high-contrast grating (HCG) as the top mirror. The TiO2-HCG rested directly on the n-GaN without an airgap for mechanical stability. A VCSEL with an aperture diameter of 10 mu m had a threshold current of 25 mA under pulsed operation at room temperature. Multiple longitudinal modes coexist around 400 nm, each TM-polarized with a linewidth of 0.5 nm (spectral resolution limited). This first demonstration of a TiO2-HCG VCSEL offers a new route to achieve polarization pinning and could also allow additional benefits such as post-growth setting of resonance wavelength.
Subject headings and genre
- NATURVETENSKAP Fysik Atom- och molekylfysik och optik hsv//swe
- NATURAL SCIENCES Physical Sciences Atom and Molecular Physics and Optics hsv//eng
- NATURVETENSKAP Fysik Annan fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Other Physics Topics hsv//eng
- TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Annan elektroteknik och elektronik hsv//swe
- ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Other Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
- electrically driven device
- TiO2
- polarization selectivity
- vertical-cavity surface-emitting laser
- GaN
- VCSEL
- high-index-contrast grating
- HCG
- micro-cavity
Added entries (persons, corporate bodies, meetings, titles ...)
- Hashemi, Seyed Ehsan,1986Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)eseyed (author)
- Bengtsson, Jörgen,1968Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jorgenb (author)
- Gustavsson, Johan,1974Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)johangus (author)
- Haglund, Åsa,1976Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)gu95asha (author)
- Lu, Tien-ChangNational Chiao Tung University (author)
- National Chiao Tung UniversityChalmers tekniska högskola (creator_code:org_t)
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- In:Proceedings of SPIE - The International Society for Optical Engineering: SPIE112800277-786X1996-756X
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