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Proceedings Paper

Photonic crystal nanocavities with quantum well or quantum dot active material
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Paper Abstract

We have investigated the miniaturization of photonic devices for ultimate photon localization, and have demonstrated two-dimensional photonic crystal nanolasers with two important quantum nanostructures-quantum wells (QWs) and quantum dots (QDs). Photonic crystal cavities with QW active material, are simple, but powerful nanolasers to produce intense laser output for signal processing. On the other hand, when located in a high-quality factor (Q) nanocavity, because QD(s) strongly couple with the intense optical field, QD photonic crystal cavities are expected to be good experimental setups to study cavity quantum electrodynamics, in addition to high speed and compact laser sources. Our photonic crystal nanolasers have shown as small thresholds as 0.12mW and 0.22mW for QD-photonic crystal lasers and QW-photonic crystal lasers, respectively, by proper cavity designs and nanofabrication. For QD-photonic crystal lasers, whispering gallery modes in square lattice were used together with coupled cavity designs and, for QW-photonic crystal lasers, quadrapole modes in triangular lattice with fractional edge dislocations were used to produce high-Q modes with small mode volume.

Paper Details

Date Published: 9 July 2004
PDF: 8 pages
Proc. SPIE 5360, Photonic Crystal Materials and Devices II, (9 July 2004); doi: 10.1117/12.525869
Show Author Affiliations
Tomoyuki Yoshie, California Institute of Technology (United States)
Marko Loncar, California Institute of Technology (United States)
Koichi Okamoto, California Institute of Technology (United States)
Yueming Qiu, Jet Propulsion Lab. (United States)
Oleg B. Shchekin, Univ. of Texas at Austin (United States)
Hao Chen, Univ. of Texas at Austin (United States)
Dennis G. Deppe, Univ. of Texas at Austin (United States)
Axel Scherer, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 5360:
Photonic Crystal Materials and Devices II
Ali Adibi; Axel Scherer; Shawn-Yu Lin, Editor(s)

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