Biphoton interference with a quantum dot source of entangled light

Hudson, A. J. and Stevenson, R. M. and Young, R. J. and Atkinson, P. and Cooper, K. and Ritchie, D. A. and Shields, A. J. (2008) Biphoton interference with a quantum dot source of entangled light. Physica E: Low-dimensional Systems and Nanostructures, 40 (6). pp. 1888-1890. ISSN 1386-9477

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We demonstrate optical interferometry beyond the limits imposed by the photon wavelength using 'triggered' entangled photon pairs from a semiconductor quantum dot. Interference fringes of the entangled biphoton state reveals a periodicity half of that obtained with the single photon, and much less than that of the pump laser. High fringe visibility indicates that biphoton interference is less sensitive to decoherence than interference of two sequential single photons. The results suggest that quantum interferometry may be possible using a semiconductor LED-like device. (C) 2007 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Journal or Publication Title: Physica E: Low-dimensional Systems and Nanostructures
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Departments: Faculty of Science and Technology > Physics
ID Code: 54915
Deposited By: ep_importer_pure
Deposited On: 07 Jun 2012 10:44
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 07:54

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