The role of resonances in strong-field multiphoton processes

Conference · Mon Oct 01 00:00:00 EDT 1990

OSTI ID:6424901

Perry, M D; Kulander, K C

Resonantly-enhanced multiphoton ionization (REMPI) has been the subject of extensive experimental and theoretical study since the invention of the laser. Until recently, the overwhelming majority of REMPI research have been conducted at intensities less than 10{sup 12} W/cm{sup 2}. At these intensities, the strength of the applied field remains less than one percent of the atomic Coulomb field experienced by the outer electrons in a typical noble gas atom. In this regime, treatment of the applied field as a weak perturbation on the atomic system yields excellent agreement with experiment. Here, we investigate the role of resonances in multiphoton ionization at much higher intensities, specifically, we examine the behavior and influence of resonances as the strength of the applied field becomes a significant fraction of the atomic field. 33 refs., 7 figs., 2 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6424901
• Report Number(s): UCRL-JC-105113; CONF-900926-4; ON: DE91004197
• Resource Relation: Conference: 5. international conference on multiphoton processes, Paris (France), 24-28 Sep 1990
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HELIUM
PHOTOIONIZATION
KRYPTON
MULTI-PHOTON PROCESSES
LASER RADIATION
RESONANCE
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
GASES
IONIZATION
NONMETALS
RADIATIONS
RARE GASES
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory