Enhanced second-harmonic generation with Cerenkov radiation scheme in organic film slab-guide at IR lines

Author

Azumai, Yuji ; Seo, Iwao ; Sato, Heihachi

Author_Institution

Dept. of Electr. Eng., Nat. Defense Acad., Yokosuka, Japan

Volume

28

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

231

Lastpage

238

Abstract

Second-harmonic generation is enhanced with both symmetric and asymmetric slab-guides composed of vinylidene cyanide/vinyl acetate copolymer film and a fused silica in the Cerenkov radiation scheme at Nd:YAG 1.06 μm and Er:YAG 2.94 μm laser lines. At 1.06 μm wavelength an enhancement factor of about five in comparison with a bulk scheme has been obtained with the symmetrical Cerenkovian configuration having the film thickness d≃5 μm. Extending the theory to the experimental model presented, the results are well explained theoretically, and an enhancement of the SHG power by a factor of 50 can be expected if d≃0.5 μm

Keywords

Cherenkov radiation; optical harmonic generation; optical waveguides; polymer blends; polymer films; 1.06 micron; 2.94 micron; 5 micron; Cerenkov radiation scheme; IR lines; YAG:Er; YAG:Nd; YAl5O12:Er; YAl5O12:Nd; asymmetric slab-guides; enhancement factor; film thickness; fused SiO₂; laser lines; organic film slab-guide; second-harmonic generation; symmetrical Cerenkovian configuration; vinylidene cyanide/vinyl acetate copolymer film; wavelength; Crystals; Erbium; Free electron lasers; Laser theory; Neodymium; Nonlinear optics; Optical films; Optical harmonic generation; Silicon compounds; Slabs;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.119518

Filename

119518