Browsing by Author "Stegeman, George"

Now showing items 1-10 of 10

    • Beam steering by x(2) trapping 

      Torner Sabata, Lluís; Torruellas, William; Stegeman, George; Menyuk, Curtis (1995-09)
      Article
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      We show numerically the mutual dragging and locking together of intense fundamental and second-harmonic light beams propagating in second-order nonlinear media, and we discuss the potential applications of such effects for ...

    • Bright solitons with second-order nonlinearities 

      Torner Sabata, Lluís; Menyuk, Curtis; Stegeman, George (1995-05)
      Article
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      We investigate the mutual trapping of intense fundamental and second-harmonic waves propagating in materials with second-order nonlinearity. Consistent with Menyuk’s robustness hypothesis of solitons, we numerically observe ...

    • Excitation of solitons with cascaded x(2) nonlinearities 

      Torner Sabata, Lluís; Menyuk, Curtis; Stegeman, George (1994-10)
      Article
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      Mutual trapping of the fundamental and second-harmonic waves propagating in a material with cascaded second-order nonlinearity is investigated. Formation of solitonlike waves under a variety of excitation conditions is ...

    • Multicolor solitons 

      Torner Sabata, Lluís; Stegeman, George (2001-06)
      Article
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    • Observation of mutual trapping and dragging of two-dimensional spatial solitary waves in a quadratic medium 

      Torruellas, William; Wang, Zou; Torner Sabata, Lluís; Stegeman, George (1995-09)
      Article
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      We report experimental evidence for trapping of two-dimensional (2 + 1) spatial solitary waves in a KTP crystal resulting from its second-order nonlinearity. In addition, dragging of the solitary beams is observed as a ...

    • Observation of self-focusing of light mediated by cubic nonlinearities in potassium titanyl phosphate 

      Carrasco Rodríguez, Sílvia; Kim, Hongki; Stegeman, George; Loza Álvarez, Pablo; Torner Sabata, Lluís (2002-11)
      Article
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      We report our observations of the transient self-narrowing of light beams mediated by dominant Kerr nonlinearities and two-photon absorption in a bulk potassium titanyl phosphate crystal near conditions for second-harmonic ...

    • Observation of two-dimensional spatial solitary waves in a quadratic medium. 

      Torruellas, William; Wang, Zou; Hagan, Dave; VanStryland, Eric; Stegeman, George; Torner Sabata, Lluís; Menyuk, Curtis (1995-06)
      Article
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      We report the first experimental demonstration of two-dimensional spatial solitary waves in second-order nonlinear optical material. When an intense optical beam is focused into a phase-matchable second-order nonlinear ...

    • Observation of two-dimensional spatial solitary waves in a ¿ (2) medium 

      Torruellas, William; Stegeman, George; Torner Sabata, Lluís (IEEE Press, 1995)
      Conference report
      Open Access
      Cascaded second order nonlinear processes offer a new range of opportunities. Indeed we have shown that under near phase matching conditions, the associated nonlinear phase distortion to the fundamental wave depletion ...

    • Second-harmonic generation tuning curves with narrow, high-intensity beams for quasiphase-matched potassium titanyl phosphate 

      Kim, Hongki; Jankovic, Ladislav; Stegeman, George; Katz, Mordechai; Carrasco, Silvia; Torner Sabata, Lluís (2002-08)
      Article
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      The tuning curves with temperature and incidence angle for second-harmonic generation were asymmetrically distorted and broadened with increasing intensity for narrow input fundamental beams in periodically poled KTiOPO4 ...

    • Two-dimensional solitons with second-order nonlinearities 

      Torner Sabata, Lluís; Menyuk, Curtis; Torruellas, William; Stegeman, George (1995-01)
      Article
      Restricted access - publisher's policy
      We investigate the propagation of intense Gaussian beams in materials with quadratic nonlinearity. Excitation of (2 + 1) solitons is numerically predicted at finite phase mismatch and in the presence of linear walk-off ...