Excited-state dynamics of thiophene thin films studied by time-resolved degenerate four-wave mixing

1997 ◽  
Vol 70 (10) ◽  
pp. 1216-1218 ◽  
Author(s):  
David Harris ◽  
Roger Dorsinville ◽  
Takeo Mukai
Keyword(s):  
Thin Films ◽  
Excited State ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Time Resolved ◽  
Excited State Dynamics ◽  
Degenerate Four Wave Mixing

Excited state dynamics in phthalocyanines studied using degenerate four wave mixing with incoherent light

2002 ◽  
Vol 06 (03) ◽  
pp. 233-237 ◽  
Author(s):  
S. Venugopal Rao ◽  
D. Narayana Rao
Keyword(s):  
Excited State ◽  
Relaxation Times ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Phase Relaxation ◽  
Incoherent Light ◽  
Phase Conjugate ◽  
Excited State Dynamics ◽  
Degenerate Four Wave Mixing ◽  
Population Relaxation

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.

Excited-state dynamics of Ru(tbbpy)32+investigated by femtosecond time-resolved four-wave mixing

2007 ◽  
Vol 4 (2) ◽  
pp. 121-125 ◽  
Author(s):  
B Dietzek ◽  
D Akimov ◽  
W Kiefer ◽  
S Rau ◽  
J Popp ◽  
...  
Keyword(s):  
Excited State ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Time Resolved ◽  
Excited State Dynamics

Time-resolved degenerate four-wave mixing in thin films of C60 and C70 using femtosecond optical pulses

1992 ◽  
Vol 196 (5) ◽  
pp. 427-432 ◽  
Author(s):  
M.J. Rosker ◽  
H.O. Marcy ◽  
Tallis Y. Chang ◽  
J.T. Khoury ◽  
K. Hansen ◽  
...  
Keyword(s):  
Thin Films ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Optical Pulses ◽  
Time Resolved ◽  
Degenerate Four Wave Mixing

The excited-state dynamics of magnesium octaethylporphyrin studied by femtosecond time-resolved four-wave-mixing

2005 ◽  
Vol 415 (1-3) ◽  
pp. 94-99 ◽  
Author(s):  
B. Dietzek ◽  
R. Maksimenka ◽  
W. Kiefer ◽  
G. Hermann ◽  
J. Popp ◽  
...  
Keyword(s):  
Excited State ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Time Resolved ◽  
Excited State Dynamics

Excited state dynamics in tetra tolyl porphyrins studied using degenerate four wave mixing with incoherent light and ps pulses

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 ◽  
...  
Keyword(s):  
Excited State ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Incoherent Light ◽  
Excited State Dynamics ◽  
Degenerate Four Wave Mixing

Detection of Bloch oscillations in a semiconductor superlattice by time-resolved terahertz spectroscopy and degenerate four-wave mixing

1994 ◽  
Vol 37 (4-6) ◽  
pp. 1321-1326 ◽  
Author(s):  
Christian Waschke ◽  
Patrick Leisching ◽  
Peter Haring Bolivar ◽  
Ralf Schwedler ◽  
Frank Brüggemann ◽  
...  
Keyword(s):  
Terahertz Spectroscopy ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Bloch Oscillations ◽  
Time Resolved ◽  
Semiconductor Superlattice ◽  
Degenerate Four Wave Mixing
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