Polarization time and length for random optical beams

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

30 Sitaatiot (Scopus)
119 Lataukset (Pure)

Abstrakti

We investigate the dynamics of the instantaneous polarization state of stationary, partially polarized random electromagnetic beamlike fields. An intensity-normalized correlation function of the instantaneous Poincaré vector is introduced for the characterization of the time evolution of the polarization state. This polarization correlation function enables us to define a polarization time and a polarization length over which the polarization state remains substantially unchanged. In the case of Gaussian statistics, the polarization correlation function is shown to assume a simple form in terms of the parameters employed to characterize partial coherence and partial polarization of electromagnetic fields. The formalism is demonstrated for a partially polarized, temporally Gaussian-correlated beam, and black-body radiation. The results are expected to find a range of applications in investigations of phenomena where polarization fluctuations of light play an important role.
AlkuperäiskieliEnglanti
Artikkeli033817
Sivut1-6
Sivumäärä6
JulkaisuPhysical Review A
Vuosikerta78
Numero3
DOI - pysyväislinkit
TilaJulkaistu - 11 syyskuuta 2008
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Tutkimusalat

  • fluctuations
  • polarization

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