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Angle-resonant stimulated polariton amplifier

Savvidis, P.G., Baumberg, J.J., Stevenson, R.M., Skolnick, M.S., Whittaker, D.M. and Roberts, J.S. (2000) Angle-resonant stimulated polariton amplifier. Physical Review Letters, 84 (7). pp. 1547-1550. ISSN 0031-9007

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Abstract

We experimentally demonstrate resonant coupling between photons and excitons in microcavities which can efficiently generate enormous single-pass optical gains approaching 100. This new parametric phenomenon appears as a sharp angular resonance of the incoming pump beam, at which the moving excitonic polaritons undergo very large changes in momentum. Ultrafast stimulated scattering is clearly identified from the exponential dependence on pump intensity. This device utilizes boson amplification induced by stimulated energy relaxation.

Item Type: Article
Copyright, Publisher and Additional Information: © 2000 The American Physical Society. Reproduced in accordance with the publisher’s self-archiving policy.
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)
The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield)
Depositing User: Repository Assistant
Date Deposited: 27 Jul 2006
Last Modified: 05 Jun 2014 17:55
Published Version: http://link.aps.org/abstract/PRL/v84/p1547
Status: Published
Publisher: American Institute of Physics
Refereed: Yes
Identification Number: 10.1103/PhysRevLett.84.1547
URI: http://eprints.whiterose.ac.uk/id/eprint/1467

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