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Proceedings Paper

Multiwavelength rolled-up InGaAs/GaAs quantum dot microtube lasers
Author(s): F. Li; Z. Mi
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Paper Abstract

We have studied the design, fabrication and characterization of free-standing rolled-up InGaAs/GaAs quantum dot microtube ring resonators, formed by the controlled release of coherently strained InGaAs/GaAs quantum dot heterostructures from the host substrate. The dependence of the 3-dimenionally confined optical modes on the tube wall thickness and surface geometry is investigated both theoretically and experimentally. We have further demonstrated optically pumped rolled-up microtube lasers at room temperature, which exhibit emission wavelengths in the range of 1.1 - 1.3 μm and a low threshold of ~ 4 μW. The design and fabrication of electrically injected rolled-up InGaAs/GaAs quantum dot microtube devices is also described.

Paper Details

Date Published: 16 February 2010
PDF: 8 pages
Proc. SPIE 7591, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics III, 75910O (16 February 2010); doi: 10.1117/12.843255
Show Author Affiliations
F. Li, McGill Univ. (Canada)
Z. Mi, McGill Univ. (Canada)


Published in SPIE Proceedings Vol. 7591:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics III
Winston V. Schoenfeld; Jian Jim Wang; Marko Loncar; Thomas J. Suleski, Editor(s)

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