On the effect of chemical radiative collisions

Dubov, V. S.; Gudzenko, L. I.; Gurvich, L. V.; Iakovlenko, S.K.

doi:10.1016/0009-2614(77)80281-9

Cited by 39 publications

(10 citation statements)

References 6 publications

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“…The photoassociation process, involving cooperative absorption of a photon by a pair of unbound atoms or molecules, causes bond formation between them in a free-tobound photonic transition. Although photoassociation has been known at least since 1937 (127), the chemical implications of this process were described conceptually much later by Dubov et al (128). Photoassociation has been used for the spectroscopic study of excimer and exciplex molecules that have a repulsive ground state (129)(130)(131)(132)(133)(134)(135)(136)(137)(138) and more recently has gained interest because of its role in the generation of ultracold molecules (139)(140)(141)(142)(143)(144)(145)(146)(147)(148)(149)(150)(151)(152)(153), the real time observation of bimolecular reactions (124,154), and control of bimolecular encounters (99,126,155).…”

Section: Free-bound Bimolecular Reactions: Photoassociationmentioning

confidence: 99%

COHERENTNONLINEARSPECTROSCOPY: From Femtosecond Dynamics to Control

Dantus

2001

Annu. Rev. Phys. Chem.

118

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This review focuses on the study of the dynamics of isolated molecules and their control using coherent nonlinear spectroscopic methods. Emphasis is placed on topics such as bound-to-free excitation and the study of concerted elimination reactions, free-to-bound excitation and the study of bimolecular reactions, and bound-to-bound excitation and the study of intramolecular rovibrational dynamics and coherence relaxation. For each case the detailed time-resolved information reveals possible strategies to control the outcome. Experimental results are shown for each of the reactions discussed. The methods discussed include pump-probe and four-wave mixing processes such as transient grating and photon echo spectroscopy. Off-resonance transient-grating experiments are shown to be ideal for the study of ground state dynamics, molecular structure, and the molecular response to strong field excitation.

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Section: Free-bound Bimolecular Reactions: Photoassociationmentioning

confidence: 99%

COHERENTNONLINEARSPECTROSCOPY: From Femtosecond Dynamics to Control

Dantus

2001

Annu. Rev. Phys. Chem.

118

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“…(1) This photo-induced harpoon reaction was originally advanced as an example of the general class of radiative collisions, and subsequently demonstrated in the gas phase by several investigators. [1][2][3][4][5] The twophoton version of the same process:…”

Section: Introductionmentioning

confidence: 99%

Condensed Phase Laser InducedHarpoon Reactions

et al. 1988

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Laser induced charge transfer reactions of halogens in rare gas solids and liquids provide a powerful means for the study of condensed phase dynamics. Many-body effects with respect to both electronic and nuclear coordinates, and cooperative interactions with radiation fields, are some of the studied phenomena that are highlighted in this article.The pertinence of these ionic reactions to chemistry in solids is demonstrated in photodissociation studies of molecular halogens in rare gas matrices. The coexistence of both delocalized and localized charge transfer states in solid xenon doped with atomic halogens is presented and dynamical consequences—charge separation, self-trapping and energy storage—are discussed. Static and dynamic solvent effects in liquid phase harpoon reactions are considered. The characterization of cooperative excitations— two-photon, two-electron transitions—in liquid solutions is presented.

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“…[1][2][3][4][5] Photoassociation has been employed to study the long range molecular states near the dissociation limit of diatomic ground state potentials between optically cooled atoms. [6][7][8][9] These studies provide information on the long range form of the internuclear ground state potential.…”

Section: Introductionmentioning

confidence: 99%

Femtosecond photoassociation: Coherence and implications for control in bimolecular reactions

Groß

Dantus

1997

The Journal of Chemical Physics

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Communication: Feshbach resonances in the water molecule revealed by state-selective spectroscopy A theoretical analysis of the recent femtosecond photoassociation spectroscopy ͑FPAS͒ experiment on mercury ͓U. Marvet and M. Dantus, Chem. Phys. Lett. 245, 393 ͑1995͔͒ is presented. It is shown that when a thermal distribution of diatom collision pairs is excited from a free to a bound electronic state on a time scale shorter than molecular vibration, an ensemble of coherent wave packets is produced. The dynamics of these wave packets created by the photoassociation pulse can be observed by firing a second probe pulse at variable time delays, and the depletion of the first excited bound state by the probe pulse is detected via fluorescence of the remaining population. Simulations of the FPAS experiment, using both wave packet propagation techniques and perturbation theory, clearly show the vibrational dynamics of the photoassociated transients. It is also demonstrated how the FPAS technique may be used as a tool for controlling the energy, impact parameter, and orientation in bimolecular reactions.

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On the effect of chemical radiative collisions

Cited by 39 publications

References 6 publications

COHERENTNONLINEARSPECTROSCOPY: From Femtosecond Dynamics to Control

COHERENTNONLINEARSPECTROSCOPY: From Femtosecond Dynamics to Control

Condensed Phase Laser InducedHarpoon Reactions

Femtosecond photoassociation: Coherence and implications for control in bimolecular reactions

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