title: A simple method of measuring very small fringe shifts.
abstract: In the method described, matched pairs of photoresistors are used for the measurement of fringe shifts. Its performance has been checked for sensitivity to light intensity and temperature fluctuations: under reasonable conditions, fringe shifts can be measured to an accuracy of 10(-4) fringe.
authors.forename: J
authors.initials: J
authors.lastname: Shamir
authors.forename: R
authors.initials: R
authors.lastname: Fox
authors.forename: S G
authors.initials: SG
authors.lastname: Lipson