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Coherent enhancement in two-photon fluorescence in molecular system induced by phase-jump modulated pulse.
- Source :
-
Journal of Chemical Physics . 3/7/2010, Vol. 132 Issue 9, p094503. 4p. 1 Diagram, 5 Graphs. - Publication Year :
- 2010
-
Abstract
- Coherent control of two-photon fluorescence (TPF) of 2′,7′-dichlorofluorescein in methanol solution was experimentally investigated by shaping the femtosecond pulse with the phase jump. The experimental results indicated that the TPF intensity induced by the shaped femtosecond pulses with certain phase jump could be coherently enhanced. The physical mechanisms for TPF enhancement in the molecular system were explicitly discussed and analyzed, which could be attributed to the wave-packet constructive interference in the excited states. Finally, two phase-locked femtosecond pulses were used to explore the wave-packet constructive interference in the excited states of 2′,7′-dichlorofluorescein, which validate experimentally the proposed mechanism. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FLUORESCENCE
*FEMTOCHEMISTRY
*WAVES (Physics)
*QUANTUM chemistry
*ALGORITHMS
Subjects
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 132
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 48428636
- Full Text :
- https://doi.org/10.1063/1.3327843