DocumentCode :
1054247
Title :
New phase-matchable nonlinear optical crystals of the formate family
Author :
Ito, Hiromasa ; Naito, Hatsuhiko ; Inaba, Humio
Author_Institution :
Tohoku University, Sendai, Japan
Volume :
10
Issue :
2
fYear :
1974
fDate :
2/1/1974 12:00:00 AM
Firstpage :
247
Lastpage :
252
Abstract :
New nonlinear optical orthorhombic formate crystals HCOONa and HCOOLi0.9Na0.1H2O have been grown from aqueous solutions in order to extend the transparency to the near infrared region. Their transmission characteristics, refractive indices, and Sellmeier\´s dispersion relations, together with nonlinear optical properties associated with second-harmonic generation (SHG), have been examined. By measuring second-harmonic intensities from these two crystals generated with a repetitively Q -switched Nd :YAG laser, we have derived the effective second-order nonlinearities deffas a function of the phase-matching angles θ and φ. These compare favorably with the analytical result. The optimum SHG condition for both the Crystals can be determined through the analysis. HCOOLi0.9Na0.1. H2O mixed crystal is transparent from 0.24 to about 1.9 μm with wider infrared transmission compared with lithium formate. It is of practical interest for its useful second-order nonlinearity and easily-grown large crystals.
Keywords :
Character generation; Crystals; Dispersion; Frequency conversion; Nonlinear optics; Optical frequency conversion; Optical harmonic generation; Optical refraction; Optical variables control; Q measurement;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1974.1145786
Filename :
1145786
Link To Document :
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