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Room-temperature optically-pumped InGaSb quantum well lasers monolithically grown on Si(100) substrate

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9 Author(s)
Balakrishnan, G. ; Center for High Technol. Mater., Univ. of New Mexico, Albuquerque, NM, USA ; Huang, S.H. ; Khoshakhlagh, A. ; Hill, P.
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Room-temperature optically-pumped In0.2Ga0.8Sb quantum well lasers on Si are reported. The defect-free monolithic epistructure growth on a Si(100) substrate is initiated by an AlSb quantum dot nucleation layer followed by an AlSb/GaSb superlattice. The 13% mismatch between the AlSb and Si lattice is accommodated by misfit dislocations and associated crystallographic undulations in the AlSb buffer. The nucleation layer and buffer are characterised by atomic force microscopy and transmission electron microscopy. The lasing spectrum is characterised as a function of pump power and polarisation analysis.

Published in:

Electronics Letters  (Volume:41 ,  Issue: 9 )

Date of Publication:

28 April 2005

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