Special Section on Quantum Dots

Self-assembly of quantum dots and rings by droplet epitaxy and their optical properties

[+] Author Affiliations
Takaaki Mano

Quantum Dot Research Center, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 Japan

Takashi Kuroda

Quantum Dot Research Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 332-0012 Japan

Keiji Kuroda

Department of Physics, School of Science, Kitasato University, 1-15-1, Sagamihara, Kanagawa 228-8555 Japan

Kazuaki Sakoda

Quantum Dot Research Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 Japan

J. Nanophoton. 3(1), 031605 (January 30, 2009). doi:10.1117/1.3085991
History: Received September 28, 2008; Revised December 6, 2008; Accepted December 8, 2008; January 30, 2009; Online January 30, 2009
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Abstract

Developments in the self-assembly by droplet epitaxy in our research group have enabled us to fabricate various GaAs quantum nanostructures of high optical quality such as quantum dots, single quantum rings, and concentric double quantum rings. We clarified their electronic states and relaxation processes by micro photoluminescence experiments. We achieved lasing of lattice-matched GaAs quantum dots and their excitonic Rabi oscillation by resonant excitation. We succeeded in the control of their photon emission rate by photonic crystal micro cavities.

© 2009 Society of Photo-Optical Instrumentation Engineers

Citation

Takaaki Mano ; Takashi Kuroda ; Keiji Kuroda and Kazuaki Sakoda
"Self-assembly of quantum dots and rings by droplet epitaxy and their optical properties", J. Nanophoton. 3(1), 031605 (January 30, 2009). ; http://dx.doi.org/10.1117/1.3085991


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