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Maximal polarization order of random optical beams: reversible and irreversible polarization variations
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
2012 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 37, no 18, 3750-3752 p.Article in journal (Refereed) Published
Abstract [en]

We discuss the degrees of polarization (DoP) of electromagnetic beams in time and frequency domains. The mean spectral DoP corresponds to the maximal temporal DoP when unitary transformations are applied in frequency domain. We demonstrate that random unitary transformations in frequency domain cannot increase the mean spectral DoP, implying that this quantity is a useful measure of the polarization order of light beams. This leads to a classification of time-domain polarization changes into reversible and irreversible processes.

Place, publisher, year, edition, pages
2012. Vol. 37, no 18, 3750-3752 p.
Keyword [en]
Random Unitary Transformations, Space-Frequency Domains, Electromagnetic-Fields, Time
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-104130ISI: 000309046300004ScopusID: 2-s2.0-84866295331OAI: diva2:563298

QC 20121029

Available from: 2012-10-29 Created: 2012-10-29 Last updated: 2012-10-29Bibliographically approved

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Friberg, Ari T.
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