Peer-Reviewed Journal Details
Mandatory Fields
Lebedev, D. V.; Mintairov, A. M.; Kulagina, M.M; Troshkov, S.I.; Kapaldo, J.; Merz, J.L.; Rouvimov, S.; Juska, Gediminas; Gocalińska, Agnieszka M.; Moroni, Stefano T.; Pelucchi, Emanuele
2016
Unknown
Journal of Physics: Conference Series
Lasing of InP/AlInAs quantum dots in AlInAs microdisk cavity
Published
()
Optional Fields
690
1
012023
AlInAs microdisk cavities having quality factor Q ~ 15 000 were fabricated from lattice-matched InP/AlInAs (interface/aggregation) quantum dot (QD) structures using wet chemical etching. The QD emission coupled to whispering gallery modes was observed at spectral range 920 - 1000 nm at temperatures of 10 - 160 K. The laser generation with threshold power density of 50 W/cm 2 at T = 10 K was observed under optical pumping. It was found that the spontaneous emission coupling factor ß equals 0.23 for these microdisks. The low temperature lasing operation and the small coupling factors observed suggest the existence of small QDs formed at the InP/InAlAs interface as the main active elements.
1742-6596
http://stacks.iop.org/1742-6596/690/i=1/a=012023
Grant Details