Abstract

Recently some novel two-photon interference experiments have been performed, where quantities such as the field coherence time and the beat spacing between light beams with different frequencies were measured with high time resolution¹. These experiments have overcome the traditional limits on time resolution by combining a Mach-Zehnder interferometer configuration with the two-photon correlation technique. All of these experiments, however, have been performed with cw light sources, and no attempt has yet been made to measure the temporal variation of the field intensity.

© 1992 The Author(s)