Interaction of atoms with intense laser fields

Theoretical Chemistry Group, Department of Chemistry, Panjab University, Chandigarh-160 014, India
E-mail: bmdeb@pu.ac.in Fax : 91-0172-545074

In recent years, new, sometimes counterintuitive, phenomena have been discovered in atom-laser interaction, which covers from
multiphoton ionization and high harmonic generation in an intense laser field to the suppression of ionization in a superintense
field. Traditional perturbative approaches cannot be resorted to for explaining these phenomena. In this article, various non-perturbative
approaches developed over the years are discussed. Experimental aspects relating to these phenomena are also described.