Femtosecond Kerr Dynamics and Three-Beam Degenerate Four-Wave Mixing with Incoherent Light

Author(s):  
T. Hattori ◽  
A. Terasaki ◽  
Xusan Cheng ◽  
T. Kobayashi
2002 ◽  
Vol 06 (03) ◽  
pp. 233-237 ◽  
Author(s):  
S. Venugopal Rao ◽  
D. Narayana Rao

We present our experimental results on the measurements of excited state dynamics in phthalocyanines ( Pc , CuPc , FePc , and ZnPc ) using degenerate four wave mixing with incoherent light (DFWM-IL). Three different timescales were observed, for all samples, in the phase conjugate signal recorded as a function of delay in probe beam in the standard backward geometry. The fastest component (< 170 fs) is associated to the phase relaxation in the S n states and the slowest components (∼3-5 ps and 35-55 ps) to the vibration and population relaxation times from the S1 state. The present results are compared with those obtained with shorter pulses and various techniques for similar molecules. The consequences of such short lifetimes are also discussed in view of the strong optical limiting properties of these molecules.


1997 ◽  
Vol 14 (10) ◽  
pp. 2710 ◽  
Author(s):  
D. Narayana Rao ◽  
S. Venugopal Rao ◽  
F. J. Aranda ◽  
D. V. G. L. N. Rao ◽  
M. Nakashima ◽  
...  

1987 ◽  
Vol 36 (3) ◽  
pp. 1298-1304 ◽  
Author(s):  
Kenji Kurokawa ◽  
Toshiaki Hattori ◽  
Takayoshi Kobayashi

2001 ◽  
Vol 192 (1-2) ◽  
pp. 123-133 ◽  
Author(s):  
S.Venugopal Rao ◽  
N.K.M. Naga Srinivas ◽  
D.Narayana Rao ◽  
L. Giribabu ◽  
Bhaskar G. Maiya ◽  
...  

2011 ◽  
Vol 19 (4) ◽  
pp. 3332 ◽  
Author(s):  
Jian Wang ◽  
Hao Huang ◽  
Xue Wang ◽  
Jeng-Yuan Yang ◽  
Alan E. Willner

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