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), 924-926. (doi:10.1049/el:20071226).
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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.
|Subjects:||Q Science > QB Astronomy
Q Science > QC Physics
|Divisions:||University Structure - Pre August 2011 > School of Physics and Astronomy > Astronomy and Space Science
University Structure - Pre August 2011 > School of Physics and Astronomy
|Date Deposited:||13 Aug 2008|
|Last Modified:||27 Mar 2014 18:39|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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