A computationally simple theory of multiple photon excitation of polyatomic molecules: Dependence of the energy distribution on molecular properties

1983 ◽  
Vol 81 (1-2) ◽  
pp. 199-210 ◽  
Author(s):  
M.V. Kuzmin
Keyword(s):  
Energy Distribution ◽  
Polyatomic Molecules ◽  
Simple Theory ◽  
Molecular Properties ◽  
Photon Excitation

Photochemistry with high power ultraviolet lasers

1983 ◽  
Vol 61 (5) ◽  
pp. 1023-1026 ◽  
Author(s):  
R. J. Donovan ◽  
C. Fotakis ◽  
A. Hopkirk ◽  
C. B. McKendrick ◽  
A. Torre
Keyword(s):  
Energy Distribution ◽  
High Power ◽  
Single Photon ◽  
Laser Induced Fluorescence ◽  
Multiphoton Excitation ◽  
Dissociation Process ◽  
Two Photon ◽  
Photon Excitation ◽  
Ultraviolet Lasers ◽  
Two Photon Excitation

Rotationally resolved photofragment fluorescence from OH(A2Σ+) following the coherent two-photon excitation of H2O with a KrF laser (248 nm), is reported and the dynamics of the dissociation process are discussed. Fluorescence from CN(B2Σ+) following two-photon excitation of ICN is also described. In both cases the energy distribution in the photofragments is shown to differ significantly from that observed with single-photon excitation at closely similar energies.Two further examples of multiphoton excitation, involving CS2 and SO2, are briefly discussed. In these cases absorption of a further photon, by fragments produced in the primary step, gives rise to strong laser-induced fluorescence.

scholarly journals Inter- and Intramolecular Vibrational Distribution in IR Multiple Photon Excitation: CF2Cl2 Molecule

1988 ◽  
Vol 8 (2-4) ◽  
pp. 81-96 ◽  
Author(s):  
Yu. S. Doljikov ◽  
A. L. Malinovsky ◽  
E. A. Ryabov
Keyword(s):  
Energy Distribution ◽  
Vibrational Energy ◽  
Vibrational Motion ◽  
Cold Molecules ◽  
Vibrational Distribution ◽  
Photon Excitation ◽  
Vibrational Energy Distribution

Vibrational energy distribution of IR MP-excited CF2Cl2 is studied when pumping molecules through ν1 and ν8 modes. In both cases the intermolecular distribution is found to be in a state of nonequilibrium consisting of ensembles of “hot” and “cold” molecules. The structure of the “cold” ensemble is different when ν1 and ν8 modes are pumped. Statistical intramolecular energy distribution caused by stochastization of vibrational motion is found for “hot” molecules. The estimated value of stochastization onset energy equals Eth ≤ 7800 cm−1.

Multiple photon excitation of polyatomic molecules from the many rotational states by an intense pulse of IR radiation

1977 ◽  
Vol 23 (3) ◽  
pp. 357-361 ◽  
Author(s):  
A.S. Akhmanov ◽  
V.Yu. Baranov ◽  
V.D. Pismenny ◽  
V.N. Bagratashvili ◽  
Yu.R. Kolomiisky ◽  
...  
Keyword(s):  
Polyatomic Molecules ◽  
Ir Radiation ◽  
Rotational States ◽  
Photon Excitation ◽  
The Many
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