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Characterization of polarization fluctuations in random electromagnetic beams
KTH, Skolan för informations- och kommunikationsteknik (ICT), Mikroelektronik och tillämpad fysik, MAP.
2009 (engelsk)Inngår i: New Journal of Physics, ISSN 1367-2630, E-ISSN 1367-2630, Vol. 11Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Two stationary, partially polarized electromagnetic beams with equal degrees of polarization may exhibit completely different time evolutions of the instantaneous polarization state. In this work, we derive a statistical quantity that describes the rate at which the field intensity in the beam, on average, is redistributed between the beam's polarization state at any time and the state orthogonal to it. This method allows one to treat the dynamical properties of the polarization fluctuations both theoretically and experimentally. We demonstrate the method by applying it to important special cases, such as fields obeying Gaussian statistics, black-body radiation pencils and depolarized laser beams. We also prove that a geometric approach introduced earlier is closely connected with the present model.

sted, utgiver, år, opplag, sider
2009. Vol. 11
Emneord [en]
mode dispersion, optical-fibers, coherence, parameters, radiation, light, field
Identifikatorer
URN: urn:nbn:se:kth:diva-18599DOI: 10.1088/1367-2630/11/7/073004ISI: 000267949600002Scopus ID: 2-s2.0-67651232221OAI: oai:DiVA.org:kth-18599DiVA, id: diva2:336646
Merknad
QC 20100525Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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