Phase-conjugate characteristics of SF 6 by degenerate four-wave mixing at 10.6 μm

1990 ◽  
Author(s):  
Bangwei Cai ◽  
Baida Lu ◽  
Xiang Zhou ◽  
Shengbiao Tang
1999 ◽  
Vol 24 (14) ◽  
pp. 972 ◽  
Author(s):  
S. Mailis ◽  
J. Hendricks ◽  
D. P. Shepherd ◽  
A. C. Tropper ◽  
N. Moore ◽  
...  

1986 ◽  
Vol 2 (10) ◽  
pp. 747-753 ◽  
Author(s):  
J. R. R Leite ◽  
P Simoneau ◽  
D Bloch ◽  
S. Le Boiteux ◽  
M Ducloy

2006 ◽  
Vol 20 (05) ◽  
pp. 245-252 ◽  
Author(s):  
T. GEETHAKRISHNAN ◽  
P. K. PALANISAMY

Optical phase-conjugation (OPC) was observed in Acid blue 9 dye-doped gelatin via degenerate four-wave mixing (DFWM) using a low-power He-Ne laser at 633 nm. Phase-conjugate (PC) signal measurements were made by varying the angle of incidence between the forward-pump beam and the probe beam in the degenerate four-wave mixing geometry. Growth of phase-conjugate signal with respect to the recording time was also measured. Finally double-exposure phase-conjugate interferometry was demonstrated in these dye doped gelatin films.


1984 ◽  
Vol 50 (3) ◽  
pp. 183-188 ◽  
Author(s):  
Prem Kumar ◽  
Jeffrey H. Shapiro ◽  
Roy S. Bondurant

1991 ◽  
Vol 84 (3-4) ◽  
pp. 205-207 ◽  
Author(s):  
Weichong Du ◽  
Xianmin Zhang ◽  
Kangsheng Chen ◽  
Zhaolun Lu ◽  
Yindong Zheng ◽  
...  

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.


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