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Blue lasing at room temperature in an optically pumped lattice-matched AlInN/GaN VCSEL structure

Feltin, E., Christmann, G., Dorsaz, J., Castiglia, A., Carlin, J.F., Butte, R., Grandjean, N., Christopoulos, S., Von Hogersthal,, G.B.H., Grundy, A.J.D., Lagoudakis, P.G. and Baumberg, J.J. (2007) Blue lasing at room temperature in an optically pumped lattice-matched AlInN/GaN VCSEL structure Electronics Letters, 43, (17), pp. 924-926.

Record type: Article


Laser action with low threshold average pump power density (~50 W - cm-2 ) at room temperature is reported for a crack-free planar vertical cavity surface emitting laser (VCSEL) structure based on a bottom lattice-matched AllnN/GaN distributed Bragg reflector (DBR) and a top dielectric DBR. The cavity region, formed by n- and p-type GaN layers surrounding only three InGaN/GaN quantum wells, corresponds to a typical active region suitable for an electrically driven VCSEL. In addition to low threshold, a spontaneous emission coupling factor beta ~ 2 x 10-10 is derived for this ready-to-be-processed laser structure.

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Published date: 16 August 2007


Local EPrints ID: 57221
ISSN: 0013-5194
PURE UUID: fbb15c66-ea76-4c83-b83b-5b5f313b88db

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Date deposited: 13 Aug 2008
Last modified: 17 Oct 2017 08:59

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Author: E. Feltin
Author: G. Christmann
Author: J. Dorsaz
Author: A. Castiglia
Author: J.F. Carlin
Author: R. Butte
Author: N. Grandjean
Author: S. Christopoulos
Author: G.B.H. Von Hogersthal,
Author: A.J.D. Grundy
Author: P.G. Lagoudakis
Author: J.J. Baumberg

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