title: Polarization changes in temporal imaging with pulses of random light.
abstract: We consider polarization changes of randomly fluctuating electromagnetic pulsed light in temporal imaging. The polarization properties of pulses formed by the time lens are formulated in terms of the Stokes parameters. For Gaussian Schell-model pulses we show that the degree and state of polarization of the time-imaged pulse can be tailored in versatile ways, depending on the temporal polarization and coherence of the input pulse and the system parameters. In particular, weakly polarized central region of the pulse may become fully polarized without energy absorption. The results have potential applications in optical communication, micromachining, and light-matter interactions.
authors.affiliation: Department of Physics and Mathematics, University of Eastern Finland, PO Box 111, FI-80101 Joensuu, Finland. timo.voipio@uef.fi
authors.forename: Timo
authors.initials: T
authors.lastname: Voipio
authors.forename: Tero
authors.initials: T
authors.lastname: Setälä
authors.forename: Ari T
authors.initials: AT
authors.lastname: Friberg
mesh_terms: D003198:Computer Simulation; D008027:Light; D015233:Models, Statistical; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation