title: Frequency up-conversion of quantum images.
abstract: We develop the theory of frequency up-conversion of an arbitrary spatially-broadband quantum state (quantum image), deriving the analytical solutions for the cases of plane-wave pump and short crystal with arbitrary pump. By using an example of the quantum image imposed by the orbital angular momentum of the pump beam in spontaneous parametric down-conversion, we show that 99%-fidelity up-conversion of quantum images from an infrared wavelength to the visible wavelength can be obtained in periodically-poled lithium-niobate crystals at reasonable pump intensities well below the crystal damage threshold.
authors.affiliation: Department of Electrical Engineering, University of Texas at Arlington, Arlington, Texas 76019, USA. vasilyev@uta.edu
authors.forename: Michael
authors.initials: M
authors.lastname: Vasilyev
authors.forename: Prem
authors.initials: P
authors.lastname: Kumar
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D008027:Light; D008962:Models, Theoretical; D011789:Quantum Theory; D012542:Scattering, Radiation