Deterministic coupling of site-selected InAs/InP quantum dots to 2D photonic crystal microcavities

Dan Dalacu; Danny Kim; Simon Frédérick; Jean Lapointe; Anthony J. Springthorpe; Philip J. Poole; Geof C. Aers; Robin L. Williams

doi:10.1117/12.816143

24 February 2009 Deterministic coupling of site-selected InAs/InP quantum dots to 2D photonic crystal microcavities

Dan Dalacu, Danny Kim, Simon Frédérick, Jean Lapointe, Anthony J. Springthorpe, Philip J. Poole, Geof C. Aers, Robin L. Williams

Author Affiliations +

Proceedings Volume 7211, Physics and Simulation of Optoelectronic Devices XVII; 72110H (2009) https://doi.org/10.1117/12.816143
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

Site-selective epitaxy and standard electron beam lithography techniques are employed to spatially couple small InAs/InP quantum dot ensembles to 2D photonic crystal membrane cavities. The small InAs quantum dot ensembles, consisting of just a few dots, are localized to areas 100x100nm² at predetermined positions dictated by a nanotemplate consisting of InP pyramids. The dots are embedded in a 2D membrane using a planarization growth step and single missing-hole defect cavities are fabricated in the membrane with the defect sites centered on the dot ensembles. This spatially couples the ensembles to the χ-dipole mode of the cavities. Emission from the cavities shows the expected mode structure, with quality factors of 2000.

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Dan Dalacu, Danny Kim, Simon Frédérick, Jean Lapointe, Anthony J. Springthorpe, Philip J. Poole, Geof C. Aers, and Robin L. Williams "Deterministic coupling of site-selected InAs/InP quantum dots to 2D photonic crystal microcavities", Proc. SPIE 7211, Physics and Simulation of Optoelectronic Devices XVII, 72110H (24 February 2009); https://doi.org/10.1117/12.816143

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