High-intensity Kapitza-Dirac effect
Abstract
Low-energy (<20 eV) free electrons produced in above-threshold ionization have been scattered by an intense optical standing wave (the Kapitza-Dirac effect). At intensities of 1013 to 1014 W/cm2 there is very high momentum transfer between the standing wave ``lattice'' and the electrons (Δp~=1000ħk). In this regime, the scattering rate approaches the optical frequency, and the electron motion is most easily analyzed by classical mechanics.
- Publication:
-
Physical Review Letters
- Pub Date:
- September 1988
- DOI:
- Bibcode:
- 1988PhRvL..61.1182B
- Keywords:
-
- Electron Beams;
- Electron Scattering;
- Free Electrons;
- Ionization;
- Standing Waves;
- Dirac Equation;
- Kapitza Resistance;
- Laser Outputs;
- Photoelectrons;
- Plane Waves;
- Lasers and Masers;
- 42.50.Vk;
- Mechanical effects of light on atoms molecules electrons and ions