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Browse Journals & Magazines > Applied Physics Letters ...> Volume:93 Issue:18 Help

Enhanced photon emission and absorption of single quantum dot in resonance with two modes in photonic crystal nanocavity

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7 Author(s)
Ota, Y. ; Institute for Nano Quantum Information Electronics, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan and Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan ; Nomura, M. ; Kumagai, Naoto ; Watanabe, Katsuyuki
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.3020295 

We demonstrate simultaneous enhancement of photon emission and absorption of a single InGaAs self-assembled quantum dot (QD) in resonance with two modes in a photonic crystal nanocavity. The QD, whose ground and excited states are resonant, respectively, with the first and second lowest order cavity modes, is excited by cavity resonant excitation at the wavelength of the second order cavity mode and shows 180 times greater photon emission from the ground state than a bare QD. This large enhancement is attributed to a combination of Purcell effect, efficient photon extraction, and cavity resonant absorption enhancement.

Published in:
Applied Physics Letters  (Volume:93 ,  Issue: 18 )

Date of Publication: Nov 2008

Page(s):
183114 - 183114-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.3020295
Date of Current Version :
18 June 2009
Issue Date :
Nov 2008

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