Published January 29, 2010
| Published
Journal Article
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Fast Electrical Control of a Quantum Dot Strongly Coupled to a Photonic-Crystal Cavity
Abstract
The resonance frequency of an InAs quantum dot strongly coupled to a GaAs photonic-crystal cavity was electrically controlled via the quadratic quantum confined Stark effect. Stark shifts up to 0.3 meV were achieved using a lateral Schottky electrode that created a local depletion region at the location of the quantum dot. We report switching of a probe laser coherently coupled to the cavity up to speeds as high as 150 MHz, limited by the RC constant of the transmission line. The coupling strength g and the magnitude of the Stark shift with electric field were investigated while coherently probing the system.
Additional Information
© 2010 The American Physical Society. Received 4 June 2009; published 27 January 2010. Financial support was provided by the Presidential Early Career Grant, the DARPA Young Faculty Grant, and the Army Research Office. Part of the work was performed at the Stanford Nanofabrication Facility of NNIN supported by the National Science Foundation. A. M. was also supported by the Stanford Graduate program (Texas Instruments). The authors thank Professor David Miller for useful discussion.Attached Files
Published - PhysRevLett.104.047402.pdf
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PhysRevLett.104.047402.pdf
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Additional details
- Eprint ID
- 34122
- Resolver ID
- CaltechAUTHORS:20120917-082746886
- Defense Advanced Research Projects Agency (DARPA)
- Army Research Office (ARO)
- NSF
- Texas Instruments
- Stanford University
- Created
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2012-09-17Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field