Self-assembled InGaAs/GaAs quantum dot microtube coherent light sources on GaAs and silicon

Z. Mi; S. Vicknesh; F. Li; P. Bhattacharya

doi:10.1117/12.810117

17 February 2009 Self-assembled InGaAs/GaAs quantum dot microtube coherent light sources on GaAs and silicon

Z. Mi, S. Vicknesh, F. Li, P. Bhattacharya

Proceedings Volume 7220, Silicon Photonics IV; 72200S (2009) https://doi.org/10.1117/12.810117
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

We have investigated the fabrication and emission characteristics of InGaAs/GaAs quantum dot microtubebased coherent light sources on GaAs and Si, which are formed by self-rolling of pseudomorphically strained semiconductor bilayers through controlled release from the substrate. Tailoring of the optical modes is achieved by engineering the shape of the microtube ring resonators. Using substrate-to-substrate transfer method, we have also achieved, for the first time, three-dimensionally confined quantum dot microtube optical ring resonators on Si, that are relatively free of dislocations. Sharp polarized and regularly spaced optical modes, with an intrinsic Q-factor of ~ 3,000, were measured at 77 K.

Citation Download Citation

Z. Mi, S. Vicknesh, F. Li, and P. Bhattacharya "Self-assembled InGaAs/GaAs quantum dot microtube coherent light sources on GaAs and silicon", Proc. SPIE 7220, Silicon Photonics IV, 72200S (17 February 2009); https://doi.org/10.1117/12.810117

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