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Single quantum dot spectroscopy using a fiber taper waveguide near-field optic

Srinivasan, Kartik and Painter, Oskar and Stintz, Andreas and Krishna, Sanjay (2007) Single quantum dot spectroscopy using a fiber taper waveguide near-field optic. Applied Physics Letters, 91 (9). Art. No. 091102. ISSN 0003-6951. doi:10.1063/1.2775811.

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Photoluminescence spectroscopy of single InAs quantum dots at cryogenic temperatures (~14 K) is performed using a micron-scale optical fiber taper waveguide as a near-field optic. A lower bound on the measured collection efficiency of quantum dot spontaneous emission into the fundamental guided mode of the fiber taper is estimated at 0.1%, and spatially resolved measurements with ~600 nm resolution are obtained by varying the taper position with respect to the sample and using the fiber taper for both the pump and collection channels.

Item Type:Article
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Painter, Oskar0000-0002-1581-9209
Additional Information:© 2007 American Institute of Physics. (Received 13 June 2007; accepted 3 August 2007; published online 27 August 2007)
Subject Keywords:III-V semiconductors; indium compounds; optical waveguides; semiconductor quantum dots
Issue or Number:9
Record Number:CaltechAUTHORS:SRIapl07b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8636
Deposited By: Archive Administrator
Deposited On:01 Sep 2007
Last Modified:08 Nov 2021 20:51

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