Influence of two‐photon absorption on third‐order nonlinear optical processes as studied by degenerate four‐wave mixing: The study of soluble didecyloxy substituted polyphenyls

1991 ◽  
Vol 95 (6) ◽  
pp. 3991-4001 ◽  
Author(s):  
Mingtang Zhao ◽  
Yiping Cui ◽  
Marek Samoc ◽  
Paras N. Prasad ◽  
Marilyn R. Unroe ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Four Wave Mixing ◽  
Photon Absorption ◽  
Wave Mixing ◽  
Third Order ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Degenerate Four Wave Mixing

Two-Photon Absorption and Degenerate Four-Wave Mixing Studies of Sulfide Semiconductor Nanoparticles in Polymeric Solutions

2008 ◽  
Vol 8 (3) ◽  
pp. 1364-1370 ◽  
Author(s):  
Wenling Jia ◽  
Fengqi Guo ◽  
Elliot P. Douglas ◽  
Wenfang Sun
Keyword(s):  
Four Wave Mixing ◽  
Semiconductor Nanoparticles ◽  
Photon Absorption ◽  
Wave Mixing ◽  
Absorption Coefficients ◽  
Third Order ◽  
Two Photon Absorption ◽  
Two Photon ◽  
The Third ◽  
Degenerate Four Wave Mixing

The two-photon absorption coefficients (β) and the third-order nonlinear susceptibilities (χ(3)) of several semiconductor nanoparticles (CdS, CdxAg1–xS, and core–shell CdS/Ag2S) that are confined and stabilized by random and block ionomers have been measured by nonlinear transmission and degenerate four-wave mixing techniques using 21 picosecond laser pulses at near-infrared spectral region. The imaginary part of the third-order nonlinear susceptibility that is related to the two-photon absorption coefficient was then calculated. The absorptive nonlinearity of the nanoparticles (2∼9 nm) was found to be dependent on the particle size, composition and wavelength, i.e., larger CdS particles exhibit higher two-photon absorption coefficients and the presence of Ag improves two-photon absorption of CdS nanoparticles. The obtained two-photon absorption coefficients of nanoparticles corrected for their volume fraction in solution are significantly greater that those of corresponding bulk semiconductors.

Effects of two-photon absorption on degenerate four-wave mixing in solutions of diphenyl polyenes

1992 ◽  
Vol 17 (10) ◽  
pp. 716 ◽  
Author(s):  
P. A. Fleitz ◽  
R. L. Sutherland ◽  
T. Pottenger ◽  
N. C. Fernelius ◽  
L. V. Natarajan
Keyword(s):  
Four Wave Mixing ◽  
Photon Absorption ◽  
Wave Mixing ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Degenerate Four Wave Mixing

Third-order nonlinear optical properties and two-photon absorption in branched oligothienylenevinylenes

2002 ◽  
Vol 209 (4-6) ◽  
pp. 461-466 ◽  
Author(s):  
I. Fuks-Janczarek ◽  
J-M. Nunzi ◽  
B. Sahraoui ◽  
I.V. Kityk ◽  
J. Berdowski ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Photon Absorption ◽  
Third Order ◽  
Two Photon Absorption ◽  
Two Photon
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