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Published July 2008 | public
Journal Article

Probing the interaction between a single quantum dot and a photonic crystal cavity

Abstract

This article reviews our recent work on the development of nanophotonic devices for quantum information processing. We have developed a temperature tuning technique, that allows us to independently tune photonic crystal cavities and quantum dots on the same chip. The high quality factor to mode volume ratio of such cavities leads to a strong interaction between the cavity and the quantum dot. The cavity modifies the quantum dot lifetime, which, in turn, modifies the transmission properties of the cavity. We observe that the resonant nonlinearity of the quantum dot is greatly enhanced by the recirculation of light, and leads to a giant optical nonlinearity, where single photons are able to saturate the quantum dot and modify the transmission function of the cavity. Along with these results, we review the experimental developments, which have led to the realization of the experiment.

Additional Information

© 2008 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Received 12 October 2007, revised 2 January 2008, accepted 17 January 2008. Published online 17 June 2008. We thank Nick Stoltz in the Pierre Petroff group at University of California at Santa Barbara for providing us with quantum dot samples used in the work on strong coupling. We thank Bingyang Zhang in the Yoshihisa Yamamoto Group at Stanford University for providing us with samples for work on single photon sources. Financial support was provided by the ONR Young Investigator Award and MURI Center for photonic quantum information systems (ARO/DTO Program). D.E. and I.F. were also supported by the NDSEG fellowship. Work was performed in part at the Stanford Nanofabrication Facility of NNIN supported by the National Science Foundation.

Additional details

Created:
August 19, 2023
Modified:
October 19, 2023