Anisotropy in Third-Order Nonlinear Optical Susceptibility of the Stretch-Oriented Chrysophenine-Doped Poly(vinyl alcohol) Films

Stretch-oriented chrysophenine-doped poly(vinyl alcohol) (PVA) films were prepared at temperatures above the glass transition temperature of PVA. The optical absorption spectra of the stretch-oriented films exhibited a very high anisotropy (anisotropy ratio = 13). The third-order nonlinear optical properties of chrysophenine in stretch-oriented PVA films were measured by the resonant femtosecond degenerate four-wave mixing (DFWM) technique. The anisotropy ratio of the DFWM signal intensity was greater than 1000. The value of third-order nonlinear optical susceptibility of a uniaxially stretch-oriented chrysophenine-doped PVA film was 6.9×10-13 esu.

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Studies of third-order nonlinear optical susceptibility and the metal—insulator phase transition of α-[BEDT-TTF]2I3 via femtosecond four-wave mixing

Chemical Physics Letters ◽

10.1016/0009-2614(92)85968-g ◽

1992 ◽

Vol 196 (3-4) ◽

pp. 280-286 ◽

Cited By ~ 5

Author(s):

K.D. Trùòng ◽

P. Grenier ◽

D. Houde ◽

A.D. Bandrauk

Keyword(s):

Phase Transition ◽

Nonlinear Optical ◽

Four Wave Mixing ◽

Wave Mixing ◽

Third Order ◽

Nonlinear Optical Susceptibility ◽

Metal Insulator ◽

Optical Susceptibility ◽

Insulator Phase Transition

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Nonlinear Optical Properties of Rigid Rod Polymers and Model Compounds

MRS Proceedings ◽

10.1557/proc-134-635 ◽

1988 ◽

Vol 134 ◽

Author(s):

Paras N. Prasad

Keyword(s):

Nonlinear Optical ◽

Wave Length ◽

Four Wave Mixing ◽

Wave Mixing ◽

Structural Variations ◽

Model Compounds ◽

Third Order ◽

Nonlinear Optical Susceptibility ◽

Optical Susceptibility ◽

Rigid Rod

ABSTRACTPicosecond and femtosecond degenerate four-wave mixing have been used to measure third-order nonlinear optical susceptibility of several rigid-rod polymers and model compounds. A significant X(3) with femtosecond response was observed. The effects of processing conditions and structural variations on X(3) were studied. Four-wave mixing studies can also be conveniently used to generate ultrasonic phonons of well defined wave length and propagation direction. From this result one can investigate mechanical properties of polymers. Using this technique both the longitudinal and shear components of the elastic moduli for a uniaxially oriented rigid-rod polymer, poly-p-phenylene bis benzooxazole (PBO), were determined.

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Resonant Third-Order Optical Nonlinearities of the Stretch-Oriented Cyanine-Dye-Doped Poly(vinyl Alcohol) Films

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.476-478.1237 ◽

2012 ◽

Vol 476-478 ◽

pp. 1237-1240

Author(s):

Zhao Hui Jin ◽

Hua Jing Gao ◽

Yong Wu Han

Keyword(s):

Vinyl Alcohol ◽

Nonlinear Optical ◽

Four Wave Mixing ◽

Cyanine Dye ◽

Poly Vinyl Alcohol ◽

Wave Mixing ◽

Optical Nonlinearities ◽

Third Order ◽

The Third ◽

Oriented Films

Stretch-oriented cyanine-dye-doped poly(vinyl alcohol) (PVA) films were prepared at temperatures above the glass transition temperature of PVA. The optical absorption spectra of the stretch-oriented films exhibited an anisotropy. The third-order nonlinear optical susceptibilities of the stretch-oriented films were measured parallel and perpendicular to the stretching direction by the resonant femtosecond degenerate four-wave mixing (DFWM) technique, and a high anisotropic X(3) was observed for the uniaxially stretch-oriented cyanine-dye-doped PVA films.

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