Excitation of higher spatial harmonics by a moving light pattern in sillenites

McClelland, T.E. and Webb, David J. and Sturman, Boris I. and Shamonina, E. and Mann, M. and Ringhofer, K.H. (1996) Excitation of higher spatial harmonics by a moving light pattern in sillenites. Optics Communications, 131 (4-6). pp. 315-321. ISSN 0030-4018. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1016/0030-4018(96)00314-8

Abstract

We investigate numerically the dependence of higher harmonics of the space-charge field on the detuning frequency between the pump waves, which form a running interference pattern. Bistability and hysteresis of harmonics are predicted for a contrast of the interference pattern m greater than or similar to (0.25-0.3). For contrasts m similar or equal to 1 and small detuning frequencies we show the existence of a narrow resonance, connected with the nonlinear excitation of a slowly decreasing sequence of spatial harmonics, For experiments we use a BSO crystal in the optical configuration which avoids nonlinear optical distortions. The experimental data show good qualitative agreement with theory.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Optics
Depositing User: F.D. Zabet
Date Deposited: 25 Jun 2009 12:35
Last Modified: 25 Jun 2014 11:43
Resource URI: http://kar.kent.ac.uk/id/eprint/18669 (The current URI for this page, for reference purposes)
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