How Key Periodic Orbits Drive Recollisions in a Circularly Polarized Laser Field

posted May 14, 2016, 11:54 AM by François Mauger   [ updated May 14, 2016, 11:55 AM ]

Abstract

We show that a family of key periodic orbits drives the recollision process in a strong circularly polarized laser field. These orbits, coined recolliding periodic orbits, exist for a wide range of parameters, and their relative influence changes as the laser and atomic parameters are varied. We find the necessary conditions for recollision-driven nonsequential double ionization to occur. The outlined mechanism is universal in that it applies equally well beyond atoms: The internal structure of the target species plays a minor role in the recollision process.

Reference

A. Kamor, F. Mauger, C. Chandre, and T. Uzer - How Key Periodic Orbits Drive Recollisions in a Circularly Polarized Laser Field - Physical Review Letters 110, 253002 (2013)