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Applied Physics Letters / Volume 98 / Issue 12 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 98, 121109 (2011); http://dx.doi.org/10.1063/1.3571446 (3 pages)

Large optical Stark shifts in semiconductor quantum dots coupled to photonic crystal cavities

R. Bose1,2, D. Sridharan1,2, G. S. Solomon2, and E. Waks1,2

1Department of Electrical Engineering and Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
2Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, USA and National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

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(Received 21 October 2010; accepted 7 March 2011; published online 23 March 2011)

We demonstrate large cavity-enhanced optical Stark shifts for a single quantum dot (QD) coupled to a photonic crystal cavity. A maximum Stark shift of 20 GHz is observed for a QD detuned by 104 GHz from the cavity mode. These Stark shifts are attained with extremely low cavity field energies of only ten photons. The changes in the QD emission wavelength are monitored via nonresonant transfer between the QD and cavity mode. Experimental results are compared to theoretical predictions based on the solution to the full master equation and found to be in excellent agreement.

© 2011 American Institute of Physics

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KEYWORDS and PACS

Keywords

gallium arsenide, III-V semiconductors, indium compounds, master equation, photonic crystals, semiconductor quantum dots, Stark effect

PACS

  • 78.66.Fd

    III-V semiconductors

  • 68.65.-k

    Low-dimensional, mesoscopic, nanoscale and other related systems: structure and nonelectronic properties

  • 71.70.Ej

    Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect

  • 78.20.Jq

    Electro-optical effects

  • 02.30.-f

    Function theory, analysis

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3571446

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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