Table of Contents
Laser Chemistry
Volume 2, Issue 2, Pages 3-20

Photon Echoes Made Simple

1Columbia Radiation Laboratory, Department of Physics, Columbia University, New York 10027, NY, USA
2Bard College, Annandale-on-Hudson 12504, NY, USA

Copyright © 1983 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Photon Echoes in gases are analyzed via the Billiard Ball Echo Model both in the short and long pulse limit where the “atoms” are represented as spherical and elliptical billiard balls, respectively. Recent experiments demonstrating the elliptical billiard ball shape are presented using intensity data which ranges over close to eleven orders of magnitude.