scholarly journals Near-Resonant Nonlinear Optical Properties of Pseudoisocyanine J-Aggregates in Langmuir-Blodgett Layers

1997 ◽  
Vol 17 (3) ◽  
pp. 123-137 ◽  
Author(s):  
K.-H. Feller ◽  
R. Gadonas ◽  
A. Pugzlys ◽  
D. Möbius

The nonlinear optical properties of pseudoisocyanine J-aggregates in Langmuir-Blodgett films have been investigated by means of degenerate four wave mixing (DFWM) process. The conversion efficiency of the DFWM signal and the estimated third order susceptibility were found to be comparable with those of pseudoisocyanine J-aggregates in solution under comparable resonance conditions. The intensity dependence of the converted (DFWM) signal is interpreted as resulting from different processes including saturation, exciton-exciton annihilation and secondary processes of dynamical disorder.

2009 ◽  
Vol 29 (6) ◽  
pp. 1714-1718
Author(s):  
刘云龙 Liu Yunlong ◽  
王文军 Wang Wenjun ◽  
高学喜 Gao Xuexi ◽  
李云 Li Yun ◽  
李慧 Li Hui ◽  
...  

2007 ◽  
Vol 72 (2) ◽  
pp. 151-154
Author(s):  
Yu. O. Barmenkov ◽  
A. V. Kir'yanov ◽  
A. N. Starodumov ◽  
I. A. Maslyanitsyn ◽  
V. D. Shigorin ◽  
...  

2012 ◽  
Vol 584 ◽  
pp. 88-91
Author(s):  
N.K. Siji Narendran ◽  
K.R. Reshma ◽  
P. Sudheesh ◽  
K. Chandrasekharan

We report the effect of electric field on third order nonlinear optical properties of Hydrazone (Hz) doped Polymethyl methacrylate (PMMA) films. The films were prepared by solution casting method. Poling of films was done by corona discharge. Single beam Z-scan technique with 7ns Nd: YAG laser pulses at 532nm were employed for the measurements. Third order susceptibility of films was measured with an emphasis on the applied electric field. We also demonstrated the second harmonic generation in the corona poled films.


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