Now showing items 1-9 of 9

    • Broadband light generation by noncollinear parametric down-conversion 

      Carrasco, S; Nars, M B; Sergienko, A; Saleh, B E A; Teich, M C; Pérez Torres, Juan; Torner Sabata, Lluís (2006-01)
      Article
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      Broadband light generation is demonstrated by noncollinear spontaneous parametric downconversion with a cw pump laser. By use of a suitable noncollinear phase-matching geometry and a tightly focused pump beam, downconverted ...
    • Engineering of multicolor spatial solitons with chirped-period quasi-phase-matching gratings in optical parametric amplification 

      Schober, A M; Fejer, M M; Carrasco, S; Torner Sabata, Lluís (2005-08)
      Article
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      We demonstrate the excitation of solitons in a parametric amplifier with enhanced signal content through the use of a chirped-period quasi-phase-matching grating. This technique affords a low soliton threshold at the input ...
    • Engineering the frequency correlations of entangled two-photon states by achromatic phase-matching 

      Pérez Torres, Juan; Macia, F; Carrasco, S; Torner Sabata, Lluís (2005-02)
      Article
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      We put forward a new method to control the spectra of photon pairs generated in parametric downconversion that allows their spectral properties to be tuned from correlation to anticorrelation, including uncorrelation. The ...
    • Enhancing the axial resolution of quantum optical coherence tomography by chirped QPM 

      Carrasco, S; Pérez Torres, Juan; Torner Sabata, Lluís; Sergienko, A; Saleh, B E A; Teich, M C (2004-10)
      Article
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      We show theoretically that a chirped quasi-phase-matching nonlinear crystal structure can significantly enhance the axial resolution in quantum optical coherence tomography by increasing the spectral width of the generated ...
    • Generating ultra-broadband biphotons via chirped QPM down-conversion 

      Teich, M C; Nasr, M B; Carrasco, S; Saleh, B E A; Sergienko, A V; Pérez Torres, Juan; Torner Sabata, Lluís; Hum, D S; Fejer, M M (2008-12)
      Article
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      Nonlinear Optics: Nonlinear optical response has enhanced our ability to produce coherent light throughout the optical spectral region.
    • Probing canonical geometrical objects by digital spiral imaging 

      Molina Terriza, Gabriel; Rebane, L; Pérez Torres, Juan; Torner Sabata, Lluís; Carrasco, S (2007-05)
      Article
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      We recently proposed a novel concept to remotely acquire information of objects, based on the discrete orbital angular momentum of light. Here we use two different schemes for implementing the technique. In order to test ...
    • Spatial-to-spectral mapping in spontaneous parametric down-conversion 

      Carrasco, S; Pérez Torres, Juan; Torner Sabata, Lluís; Sergienko, A; Saleh, B E A; Teich, M C (2004-10)
      Article
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      We put forward an approach for manipulating the spectral profile of entangled photon pairs. Such spectral properties are mediated by the geometry of noncollinear spontaneous parametric down-conversion and by selecting the ...
    • Spectral engineering of entangled two-photon states 

      Carrasco, S; Sergienko, A V; Saleh, B E A; Teich, M C; Pérez Torres, Juan; Torner Sabata, Lluís (2006-06)
      Article
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      We experimentally demonstrate an approach for manipulating the spectral profiles of entangled-photon pairs. The spectral properties are determined by selecting both the appropriate spatial profile of the pump laser radiation ...
    • Ultrabroadband biphotons generated via chirped quasi-phase-matched optical parametric down-conversion 

      Nasr, M B; Carrasco, S; Saleh, B E A; Sergienko, A V; Teich, M C; Pérez Torres, Juan; Torner Sabata, Lluís; Hum, D S; Fejer, M M (2008-05)
      Article
      Restricted access - publisher's policy
      We generate ultrabroadband biphotons via the process of spontaneous parametric down-conversion (SPDC) in quasi-phase-matched nonlinear gratings that have a linearly chirped wave vector. By using these ultrabroadband biphotons ...