Selective nonlinear response-preparation in the electronic ground-state by means of Degenerate Four-Wave-Mixing

2010 ◽  
Author(s):  
J. P. Kraack ◽  
T. Buckup ◽  
M. Motzkus
Keyword(s):  
Ground State ◽  
Nonlinear Response ◽  
Four Wave Mixing ◽  
Electronic Ground State ◽  
Wave Mixing ◽  
Response Preparation ◽  
Degenerate Four Wave Mixing ◽  
Electronic Ground

Degenerate four-wave mixing measurements of the nonlinear response of conjugated silicon-ethynylene polymers

1999 ◽  
Author(s):  
Oleg L. Antipov ◽  
Andrey V. Afanasiev ◽  
George A. Domrachev ◽  
William E. Douglas ◽  
Daniel M. H. Guy ◽  
...  
Keyword(s):  
Nonlinear Response ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Degenerate Four Wave Mixing

Enhanced Third Order Optical Nonlinear Response in Polythiophene Films—Polaron Contributions

1989 ◽  
Vol 173 ◽  
Author(s):  
Lina Yang ◽  
R. Dorsinville ◽  
R. Zamboni ◽  
C. Taliani ◽  
R. Tubino ◽  
...  
Keyword(s):  
Nonlinear Response ◽  
Four Wave Mixing ◽  
Nonlinear Susceptibility ◽  
Wave Mixing ◽  
Third Order ◽  
Pump Probe ◽  
Order Of Magnitude ◽  
Degenerate Four Wave Mixing ◽  
Thiophene Based Polymers ◽  
Third Order Nonlinear Susceptibility

ABSTRACTThe enhancement of the third order nonlinear susceptibility χ(3)) of an homologous series of polycondensed thiophene based polymers was observed about photoinduced polaronic bands by a novel “pump-probe” degenerate four wave mixing echnique. Enhancement of the degenerate four wave mixing signal for more than an order of magnitude was achieved with response time of less than 25 ps. The intrachain polarons contribution is proposed as the possible mechanism responsible for the observed enhancement.

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