Resonant two-photon autoionization of H/sub 2/. III. Effect of laser bandwidth and ac Stark shift on photoelectron angular distribution and line shape of the intermediate state

Journal Article · Mon Feb 15 00:00:00 EST 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.37.1363· OSTI ID:5596511

Ganguly, S; Rai Dastidar, K

In the case of resonant two-photon autoionization of H/sub 2/, the influence of laser bandwidth on the photoelectron angular distribution is seen to be large at lower intensities (approx.10/sup 6/ W/cm/sup 2/), but gradually disappears towards higher intensities. At very high intensities (approx.10/sup 12/ W/cm/sup 2/), the ac Stark shift of the resonant intermediate state is found to affect the distribution significantly. It has also been found that the Stark-shifted line shape of the intermediate state tends to be symmetrical around zero detuning on increasing the laser bandwidth.

• Research Organization: Department of Materials Science, Atomic and Molecular Physics Section, Indian Association for the Cultivation of Science, Calcutta 700chemically bond032, India
• OSTI ID: 5596511
• Journal Information: Phys. Rev. A; (United States), Vol. 37:4
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HYDROGEN
AUTOIONIZATION
ANGULAR DISTRIBUTION
CORRELATIONS
ELECTRON EMISSION
FLUX DENSITY
LASER RADIATION
LINE WIDTHS
MOLECULES
MULTI-PHOTON PROCESSES
RESONANCE
STARK EFFECT
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
IONIZATION
NONMETALS
RADIATIONS
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory