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Hidden polarization of unpolarized light

Hidden polarization of unpolarized light
Hidden polarization of unpolarized light

We consider polarization properties of the unpolarized emission of an ensemble of classical emitters with randomly varying polarization. The light is supposed to be unpolarized in the sense that all three polarization-related components of its Stokes vector are zero. At the same time, the mean-square values of these components should not be necessarily zero, may differ from each other, and, therefore, may provide additional information about properties of individual emitters. Experimentally, this information is revealed as dependence of the polarization noise on the azimuth of the quarter-wave plate placed before the polarization-sensitive detector. This dependence appears to be different for the emitters randomly polarized over the equator of the Poincaré sphere, or preferentially located on its poles, or uniformly covering the whole sphere. We show that full quantitative analysis of the polarization-noise anisotropy allows one, in the framework of the proposed model, to get information about polarization characteristics of individual emitters hidden in the emission of the ensemble. Vitality of the method is illustrated by its application to polarization analysis of the polariton laser emission, which is shown to predominantly arise from linearly polarized emitters.

2469-9926
1-6
Kozlov, G. G.
57c5270d-b3fc-48b7-979a-3b97a4fd4ad9
Ryzhov, I. I.
86b86246-76ba-4eb5-bce1-dd0720838e82
Tzimis, A.
847b3aba-c130-458d-93f7-2d5f520e2567
Hatzopoulos, Z.
4ee394c3-9399-41e2-ab9b-2ddab346bd41
Savvidis, P. G.
9922c8cf-9504-4949-822c-767cdcad58be
Kavokin, A. V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Bayer, M.
16cfef86-dcd4-49d0-a0d9-0b06f0d6d16a
Zapasskii, V. S.
98b43196-619e-4591-a45b-fd7171240ca4
Kozlov, G. G.
57c5270d-b3fc-48b7-979a-3b97a4fd4ad9
Ryzhov, I. I.
86b86246-76ba-4eb5-bce1-dd0720838e82
Tzimis, A.
847b3aba-c130-458d-93f7-2d5f520e2567
Hatzopoulos, Z.
4ee394c3-9399-41e2-ab9b-2ddab346bd41
Savvidis, P. G.
9922c8cf-9504-4949-822c-767cdcad58be
Kavokin, A. V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Bayer, M.
16cfef86-dcd4-49d0-a0d9-0b06f0d6d16a
Zapasskii, V. S.
98b43196-619e-4591-a45b-fd7171240ca4

Kozlov, G. G., Ryzhov, I. I., Tzimis, A., Hatzopoulos, Z., Savvidis, P. G., Kavokin, A. V., Bayer, M. and Zapasskii, V. S. (2018) Hidden polarization of unpolarized light. Physical Review A, 98 (4), 1-6. (doi:10.1103/PhysRevA.98.043810).

Record type: Article

Abstract

We consider polarization properties of the unpolarized emission of an ensemble of classical emitters with randomly varying polarization. The light is supposed to be unpolarized in the sense that all three polarization-related components of its Stokes vector are zero. At the same time, the mean-square values of these components should not be necessarily zero, may differ from each other, and, therefore, may provide additional information about properties of individual emitters. Experimentally, this information is revealed as dependence of the polarization noise on the azimuth of the quarter-wave plate placed before the polarization-sensitive detector. This dependence appears to be different for the emitters randomly polarized over the equator of the Poincaré sphere, or preferentially located on its poles, or uniformly covering the whole sphere. We show that full quantitative analysis of the polarization-noise anisotropy allows one, in the framework of the proposed model, to get information about polarization characteristics of individual emitters hidden in the emission of the ensemble. Vitality of the method is illustrated by its application to polarization analysis of the polariton laser emission, which is shown to predominantly arise from linearly polarized emitters.

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More information

e-pub ahead of print date: 5 October 2018
Published date: October 2018

Identifiers

Local EPrints ID: 427322
URI: https://eprints.soton.ac.uk/id/eprint/427322
ISSN: 2469-9926
PURE UUID: 004c19b4-8f9b-41df-bd61-0b7af590ee5d

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Date deposited: 11 Jan 2019 17:30
Last modified: 11 Jan 2019 17:30

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Contributors

Author: G. G. Kozlov
Author: I. I. Ryzhov
Author: A. Tzimis
Author: Z. Hatzopoulos
Author: P. G. Savvidis
Author: A. V. Kavokin
Author: M. Bayer
Author: V. S. Zapasskii

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