Modeling of ultrabroadband and single-cycle phenomena in anisotropic quadratic crystals

Year: 2011

Authors: Conforti M., Baronio F., De Angelis C.

Autors Affiliation: Dipartimento di Ingegneria dell’Informazione, Università di Brescia, Via Branze 38, 25123 Brescia, Italy

Abstract: We present a comprehensive model to describe the propagation of single-cycle and broadband optical pulses in anisotropic, dispersive, and nonlinear materials. Two nonlinear coupled wave equations describe the dynamics and interactions of optical pulses in uniaxial second-order nonlinear materials. The equations are first order in the propagation coordinate and are valid for arbitrarily wide pulse bandwidth, providing an accurate modeling of the evolution of ultrabroadband pulses also when the separation into different coupled frequency components is not possible or not profitable. We exploit this model to simulate recently observed femtosecond single-cycle multiterahertz transients in gallium selenide and to predict harmonic generation and spectral broadening in the visible and mid-infrared in lithium niobate. (C) 2011 Optical Society of America

Journal/Review: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B: OPTICAL PHYSICS

Volume: 28 (5)      Pages from: 1231  to: 1237

KeyWords: Nonlinear Optics
DOI: 10.1364/JOSAB.28.001231

Citations: 14
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