Spectral fringes in non-phase-matched SHG and refinement of dispersion relations in the VUV


Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1364/OE.23.010091

Ключевые слова: Dispersions, Electromagnetic pulse, Light velocity, Nonlinear equations, Nonlinear optics, Phase matching, Refractive index, Ultrashort pulses, Dispersion relations, Fringe separation, Fundamental pulse, Nonlinear crystals, Phase and group velocities, Quasi phase matching, Second harmonics, Sellmeier equation, Harmonic generation

Аннотация: We consider second harmonic generation (SHG) of ultrashort pulses in the case of strong phase-and group-velocity mismatch. Spectral fringes appear in the second harmonic related to two delayed replicas of the fundamental pulse in the time domain. The fringe separation can be used to evaluate the group-velocity and refractive index Показать полностьюof nonlinear crystals at extreme wavelengths. Experimental results with femtosecond pulses in SrB4O7 (SBO) are used to refine the Sellmeier equation describing the n(c) refractive index down to 160 nm, essential for the use of this unique nonlinear crystal for random quasi-phase-matching in the VUV. (C) 2015 Optical Society of America

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Выпуск журнала: Vol. 23, Is. 8

Номера страниц: 10091-10096

ISSN журнала: 10944087

Место издания: WASHINGTON



  • Trabs P. (Max Born Institute for Nonlinear Optics and Ultrafast Spectroscopy)
  • Noack F. (Max Born Institute for Nonlinear Optics and Ultrafast Spectroscopy)
  • Petrov V. (Max Born Institute for Nonlinear Optics and Ultrafast Spectroscopy)
  • Aleksandrovsky A.S. (Siberian Federal University)
  • Zaitsev A.I. (Siberian Federal University)
  • Radionov N.V. (Siberian Federal University)