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Spin noise amplification and giant noise in optical microcavity

Spin noise amplification and giant noise in optical microcavity
Spin noise amplification and giant noise in optical microcavity
When studying the spin-noise-induced fluctuations of Kerr rotation in a quantum-well microcavity, we have found a dramatic increase of the noise signal (by more than two orders of magnitude) in the vicinity of anti-crossing of the polariton branches. The effect is explained by nonlinear optical instability of the microcavity giving rise to the light-power-controlled amplification of the polarization noise signal. In the framework of the developed model of built-in amplifier, we also interpret the nontrivial spectral and intensity-related properties of the observed noise signal below the region of anti-crossing of polariton branches. The discovered effect of optically controllable amplification of broadband polarization signals in microcavities in the regime of optical instability may be of interest for detecting weak oscillations of optical anisotropy in fundamental research and for other applications in optical information processing.
0021-8979
Ryzhov, I. I.
86b86246-76ba-4eb5-bce1-dd0720838e82
Poltavtsev, S. V.
60196fb2-e51c-436c-8ad4-1a6a060e276d
Kozlov, G. G.
57c5270d-b3fc-48b7-979a-3b97a4fd4ad9
Kavokin, A. V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Lagoudakis, P. V.
ea50c228-f006-4edf-8459-60015d961bbf
Zapasskii, V. S.
98b43196-619e-4591-a45b-fd7171240ca4
Ryzhov, I. I.
86b86246-76ba-4eb5-bce1-dd0720838e82
Poltavtsev, S. V.
60196fb2-e51c-436c-8ad4-1a6a060e276d
Kozlov, G. G.
57c5270d-b3fc-48b7-979a-3b97a4fd4ad9
Kavokin, A. V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Lagoudakis, P. V.
ea50c228-f006-4edf-8459-60015d961bbf
Zapasskii, V. S.
98b43196-619e-4591-a45b-fd7171240ca4

Ryzhov, I. I., Poltavtsev, S. V., Kozlov, G. G., Kavokin, A. V., Lagoudakis, P. V. and Zapasskii, V. S. (2015) Spin noise amplification and giant noise in optical microcavity. Journal of Applied Physics, 117 (22), [224305]. (doi:10.1063/1.4922405).

Record type: Article

Abstract

When studying the spin-noise-induced fluctuations of Kerr rotation in a quantum-well microcavity, we have found a dramatic increase of the noise signal (by more than two orders of magnitude) in the vicinity of anti-crossing of the polariton branches. The effect is explained by nonlinear optical instability of the microcavity giving rise to the light-power-controlled amplification of the polarization noise signal. In the framework of the developed model of built-in amplifier, we also interpret the nontrivial spectral and intensity-related properties of the observed noise signal below the region of anti-crossing of polariton branches. The discovered effect of optically controllable amplification of broadband polarization signals in microcavities in the regime of optical instability may be of interest for detecting weak oscillations of optical anisotropy in fundamental research and for other applications in optical information processing.

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Accepted/In Press date: 29 May 2015
Published date: 11 June 2015

Identifiers

Local EPrints ID: 430562
URI: http://eprints.soton.ac.uk/id/eprint/430562
ISSN: 0021-8979
PURE UUID: 75a7bab6-20de-4045-be81-ce82a789204f

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Date deposited: 03 May 2019 16:30
Last modified: 03 May 2019 16:30

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Contributors

Author: I. I. Ryzhov
Author: S. V. Poltavtsev
Author: G. G. Kozlov
Author: A. V. Kavokin
Author: V. S. Zapasskii

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