High Q-factor (~60,000) Whispering Gallery Modes are observed from GaAs based micropillar cavities with embedded InAs quantum dots. Low threshold lasing is observed in WGMs near to the peak of the QD ensemble.
© 2008 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(250.0250) Optoelectronics : Optoelectronics
(140.3948) Lasers and laser optics : Microcavity devices
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices
B. Jones, V. Astratov, R. Oulton, S. Lam, D. Sanvitto, D. Whittaker, M. Fox, M. Skolnick, P. Fry, and M. Hopkinson, "Whispering Gallery Modes in Quantum Dot Micropillar Cavities," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper CTuW7.
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