Methods of enhancement of the efficiency of generation of the second optical harmonic of spatially limited laser beams

Frequency doubling of spatially limited laser beams in nonlinear optical crystals is analyzed. Conditions are found under which the diaphragm aperture effect limiting the efficiency of the process of second optical harmonic generation can be reduced. It is shown that a spatial shift of mutually orth...

Full description

Saved in:
Bibliographic Details
Published in:Optics and spectroscopy 2006-12, Vol.101 (6), p.980-982
Main Author: Sapaev, U. K.
Format: Article
Language:English
Subjects:
Efficiency
Laser beams
Nonlinear optics
Optimization
Second harmonic generation
Wave propagation
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Frequency doubling of spatially limited laser beams in nonlinear optical crystals is analyzed. Conditions are found under which the diaphragm aperture effect limiting the efficiency of the process of second optical harmonic generation can be reduced. It is shown that a spatial shift of mutually orthogonally polarized beams of fundamental radiation in the direction perpendicular to the direction of propagation of the waves, as well as the optimization of the ratio of the spatial dimensions and the intensity at the entrance of the nonlinear medium, gives rise to an increase in the efficiency of second harmonic generation.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X06120241