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Recent progress for...
Recent progress for blue VCSELs and challenges to move to UV
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- Haglund, Åsa, 1976 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hjort, Filip, 1991 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Enslin, Johannes (author)
- Technische Universität Berlin
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- Cobet, Munise (author)
- Technische Universität Berlin
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- Bergmann, Michael Alexander, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hashemi, Seyed Ehsan, 1986 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kolbe, Tim (author)
- Ferdinand-Braun-Institut fur Hochstfrequenztechnik
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- Gustavsson, Johan, 1974 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bengtsson, Jörgen, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wernicke, Tim (author)
- Technische Universität Berlin
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- Kneissl, Michael (author)
- Technische Universität Berlin
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(creator_code:org_t)
- 2020
- 2020
- English.
- Related links:
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https://research.cha...
Abstract
Subject headings
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- We will summarize state-of-the-art results in III-nitride-based vertical-cavity surface-emitting lasers (VCSELs) and the main challenges in going from blue to ultraviolet-emitting devices. In particular we will highlight how to reduce threshold current densities by using optically guided cavities and our method to simultaneously achieve high-reflectivity mirrors and good control over the cavity length for AlGaN-based ultraviolet VCSELs. The latter has resulted in the shortest emission wavelength from a VCSEL at around 310 nm. This claim of lasing is supported by a nonlinear increase in output power versus pump power and a simultaneous beam width and spectral narrowing around threshold.
Subject headings
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
- 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)
Publication and Content Type
- kon (subject category)
- vet (subject category)
To the university's database
- By the author/editor
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Haglund, Åsa, 19 ...
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Hjort, Filip, 19 ...
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Enslin, Johannes
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Cobet, Munise
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Bergmann, Michae ...
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Hashemi, Seyed E ...
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show more...
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Kolbe, Tim
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Gustavsson, Joha ...
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Bengtsson, Jörge ...
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Wernicke, Tim
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Kneissl, Michael
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Accelerator Phys ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
- By the university
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Chalmers University of Technology