Planar second-harmonic generation with noncollinear pumps in disordered media

Vito Roppo; David Dumay; Jose Trull; Crina Cojocaru; Solomon M. Saltiel; Kestutis Staliunas; Ramon Vilaseca; Dragomir N. Neshev; Wieslaw Krolikowski; Yuri S. Kivshar

doi:10.1364/OE.16.014192

Planar second-harmonic generation with noncollinear pumps in disordered media

Vito Roppo^*, David Dumay, Jose Trull, Crina Cojocaru, Solomon M. Saltiel, Kestutis Staliunas, Ramon Vilaseca, Dragomir N. Neshev, Wieslaw Krolikowski, Yuri S. Kivshar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

We study experimentally the process of the second harmonic generation by two noncollinear beams in quadratic nonlinear crystals with a disordered structure of ferroelectric domains. We show that the second-harmonic radiation is emitted in the form of two cones as well as in a plane representing the cross-correlation of the two fundamental pulses. We demonstrate the implementation of this parametric process for characterisation of femtosecond pulses, enabling the estimation of pulse width, chirp, and front tilt. This is achieved through monitoring the evolution of the autocorrelation trace inside the nonlinear crystal.

Original language	English
Pages (from-to)	14192-14199
Number of pages	8
Journal	Optics Express
Volume	16
Issue number	18
DOIs	https://doi.org/10.1364/OE.16.014192
Publication status	Published - 1 Sept 2008

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title = "Planar second-harmonic generation with noncollinear pumps in disordered media",

abstract = "We study experimentally the process of the second harmonic generation by two noncollinear beams in quadratic nonlinear crystals with a disordered structure of ferroelectric domains. We show that the second-harmonic radiation is emitted in the form of two cones as well as in a plane representing the cross-correlation of the two fundamental pulses. We demonstrate the implementation of this parametric process for characterisation of femtosecond pulses, enabling the estimation of pulse width, chirp, and front tilt. This is achieved through monitoring the evolution of the autocorrelation trace inside the nonlinear crystal.",

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T1 - Planar second-harmonic generation with noncollinear pumps in disordered media

AU - Roppo, Vito

AU - Dumay, David

AU - Trull, Jose

AU - Cojocaru, Crina

AU - Saltiel, Solomon M.

AU - Staliunas, Kestutis

AU - Vilaseca, Ramon

AU - Neshev, Dragomir N.

AU - Krolikowski, Wieslaw

AU - Kivshar, Yuri S.

PY - 2008/9/1

Y1 - 2008/9/1

N2 - We study experimentally the process of the second harmonic generation by two noncollinear beams in quadratic nonlinear crystals with a disordered structure of ferroelectric domains. We show that the second-harmonic radiation is emitted in the form of two cones as well as in a plane representing the cross-correlation of the two fundamental pulses. We demonstrate the implementation of this parametric process for characterisation of femtosecond pulses, enabling the estimation of pulse width, chirp, and front tilt. This is achieved through monitoring the evolution of the autocorrelation trace inside the nonlinear crystal.

AB - We study experimentally the process of the second harmonic generation by two noncollinear beams in quadratic nonlinear crystals with a disordered structure of ferroelectric domains. We show that the second-harmonic radiation is emitted in the form of two cones as well as in a plane representing the cross-correlation of the two fundamental pulses. We demonstrate the implementation of this parametric process for characterisation of femtosecond pulses, enabling the estimation of pulse width, chirp, and front tilt. This is achieved through monitoring the evolution of the autocorrelation trace inside the nonlinear crystal.

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U2 - 10.1364/OE.16.014192

DO - 10.1364/OE.16.014192

M3 - Article

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VL - 16

SP - 14192

EP - 14199

JO - Optics Express

JF - Optics Express

IS - 18

ER -

Planar second-harmonic generation with noncollinear pumps in disordered media

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