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

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.

Theoretical and Experimental Studies of Third-Order Nonlinear Optical Susceptibilities of New p-N,N'-Diamethylaniline Tetrathiafulvalene Derivatives

2000 ◽  
Vol 660 ◽  
Author(s):  
B. Sahraoui ◽  
K.J. Pluciński ◽  
M. Makowaska-Janusik ◽  
I. V. Kityk ◽  
M. Salle ◽  
...  
Keyword(s):  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Nonlinear Optical ◽  
Experimental Studies ◽  
Physical Nature ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Electronic Contribution ◽  
Optical Nonlinearities ◽  
Third Order

ABSTRACTA study was made of third-order nonlinear optical susceptibilities of new tetrathiafulvalene (TTF) derivatives, using the degenerate four wave mixing (DFWM) method, as well as complex quantum chemical calculations. To understand the physical nature of the optical nonlinearities, we separated their electronic and nuclear contributions. We found that the electronic contribution to these nonlinearities predominated. Our investigations suggest that TTF may be a highly promising material for nonlinear optics (NLO).

Third-Order Nonlinear Optical Properties of Phthalocyanines

1992 ◽  
Vol 247 ◽  
Author(s):  
James S. Shirk ◽  
J. R. Undle ◽  
Steven R. Flom ◽  
F. J. Bartoli ◽  
Arthur W. Snow
Keyword(s):  
Nonlinear Optical ◽  
Optical Pumping ◽  
Optical Nonlinearity ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Third Order ◽  
Time Resolved ◽  
The Third ◽  
Nlo Materials ◽  
Interesting Class

ABSTRACTThis paper discusses the third-order nonlinear optical (NLO) properties of substituted phthalocyanines measured by time-resolved degenerate four-wave mixing at 1064 nm. The study explores optical pumping as a mechanism contributing to a large third-order optical nonlinearity in one member of this interesting class of NLO materials, PbPc(CP)4.

Fast Optical Switching Using Cyanine Dye-Doped Nematic Liquid Crystal

2014 ◽  
Vol 1033-1034 ◽  
pp. 1131-1134
Author(s):  
Hua Jing Gao ◽  
Zhao Hui Jin
Keyword(s):  
Laser Power ◽  
Optical Switching ◽  
Emission Spectra ◽  
Four Wave Mixing ◽  
Cyanine Dye ◽  
Wave Mixing ◽  
Slow Response ◽  
Third Order ◽  
The Third ◽  
Optical Responses

Two kinds of cyanine dye were doped respectively in 4-cyano-4'-pentylbiphenyl (5CB) at a concentration ca. 1.0 wt%, and the mixture was sandwiched between two pieces of rubbed glass plates. The third-order nonlinear optical responses of cyanine dye-doped 5CB layers were measured for light polarized parallel to the oriented direction by the resonant femtosecond forward degenerate four-wave mixing technique at 820 nm. The time resolution of the system was ca. 0.3 ps. The amplified spontaneous emission spectra of cyanine dye-doped 5CB layers indicate that the decay of the slow response was accelerated with increasing laser power. The population grating disappears within ca. 5 ps.

The Effect of Matrix Attachment on the Third Order Nonlinear Optical Properties of Dyes

1989 ◽  
Vol 173 ◽  
Author(s):  
David W. Polis ◽  
Mamoun M. Bader ◽  
Larry R. Dalton
Keyword(s):  
Optical Properties ◽  
Phase Separation ◽  
Nonlinear Optical ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Third Order ◽  
The Third ◽  
Composite Systems ◽  
Styrene Copolymers ◽  
Nonlinear Responses

ABSTRACTIn order to discern the source of the third order nonlinear optical (NLO) phenomenon both morphological and electronic considerations are required. A series of styrene copolymers with varying amounts of p-aminostyrene or p-chloromethylstyrene were prepared as anchoring sites for chemically reactive electrophilic and nucleophilic dyes. For comparison, the same dyes were incorporated into composites of polycarbonate. Preliminary degenerate four wave mixing results for all materials indicate that the copolymeric support allowed incorporation of greater amounts of electroactive units, versus composites, and hence allowed high third order nonlinear responses (X(3)/α of approximately 10−13 esu cm). Third order NLO responses were absent in some composite systems due to limited solubility and/or phase separation difficulties.

scholarly journals Synthesis, polymerization ability, nonlinear optical properties of methacrylic monomers and polymers with benzylidene moiety

2007 ◽  
Vol 1 (3) ◽  
pp. 131-135
Author(s):  
Vitaliy Smokal ◽  
◽  
Oksana Krupka ◽  
Aleksey Kolendo ◽  
Beata Derkowska ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Four Wave Mixing ◽  
Nonlinear Optical Properties ◽  
Wave Mixing ◽  
Third Order ◽  
The Third ◽  
Methacrylic Monomers ◽  
Degenerate Four Wave Mixing ◽  
532 Nm

New methacrylic monomers, their polymers with benzylidene fragment were synthesized. Structures of all compounds were determined by HNMR, UV- spectroscopies. The third order nonlinear optical properties of oxazolone, thiazolidinone and thiohydantoin containing compounds were investigated in solutions using degenerate four wave mixing (DFWM) method at 532 nm.

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

2013 ◽  
Vol 634-638 ◽  
pp. 2432-2435
Author(s):  
Zhao Hui Jin ◽  
Hua Jing Gao
Keyword(s):  
Vinyl Alcohol ◽  
Nonlinear Optical ◽  
Poly Vinyl Alcohol ◽  
Anisotropy Ratio ◽  
Wave Mixing ◽  
Third Order ◽  
Nonlinear Optical Susceptibility ◽  
Optical Susceptibility ◽  
High Anisotropy ◽  
Very High

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.

scholarly journals Highly efficient THz four-wave mixing in doped silicon

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Nils Dessmann ◽  
Nguyen H. Le ◽  
Viktoria Eless ◽  
Steven Chick ◽  
Kamyar Saeedi ◽  
...  
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Optical Nonlinearities ◽  
Third Order ◽  
Picosecond Pulses ◽  
Light Pulses ◽  
A Value ◽  
Doped Silicon ◽  
Perturbative Regime ◽  
Silicon Doped

AbstractThird-order non-linearities are important because they allow control over light pulses in ubiquitous high-quality centro-symmetric materials like silicon and silica. Degenerate four-wave mixing provides a direct measure of the third-order non-linear sheet susceptibility χ(3)L (where L represents the material thickness) as well as technological possibilities such as optically gated detection and emission of photons. Using picosecond pulses from a free electron laser, we show that silicon doped with P or Bi has a value of χ(3)L in the THz domain that is higher than that reported for any other material in any wavelength band. The immediate implication of our results is the efficient generation of intense coherent THz light via upconversion (also a χ(3) process), and they open the door to exploitation of non-degenerate mixing and optical nonlinearities beyond the perturbative regime.

Structured light using carbon nanostructures driven by Kerr nonlinearities and a magnetic field

2021 ◽  
Author(s):  
Eric A. Hurtado-Aviles ◽  
Maria Vila ◽  
Juan José Vilatela ◽  
Hilario Martines-Arano ◽  
Jhovani Bornacelli ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Carbon Nanotubes ◽  
Carbon Nanostructures ◽  
Nonlinear Optical ◽  
Wave Mixing ◽  
Substantial Influence ◽  
Third Order ◽  
The Third ◽  
Aligned Carbon Nanotubes ◽  
Two Wave Mixing

A substantial influence of a magnetic field on the third-order nonlinear optical properties exhibited by aggregated networks of aligned carbon nanotubes (CNT) is reported by systematic measurements. A two-wave mixing...

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