Accession Number : AD0290641

Title :   ATOMS INSIDE A PEROT-FABRY INTERFEROMETER

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MA

Personal Author(s) : KASTLER, A.

Report Date : MAR 1962

Pagination or Media Count : 1

Abstract : The following aspects are considered in this analysis: In the case of external illumination, the distribution of light intensity inside a Perot-Fabry interferometer is calculated. It is shown that the local light intensity in the stationary waves inside can be much higher than the intensity of the incident light beam. The properties of light emitted by atoms inside the Perot-Fabry and emerging from it are investigated. Narrow fringes of very strong intensity can be obtained. If the emitting atoms are located in an atomic beam the central fringe has natural line width, the Doppler broadening being suppressed. The realization of a fluorescent medium of lamellar structure is discussed. This structure favors one special mode of emission fringes. Finally, the absorption of atoms inside the interferometer is studied. It is shown that this device is equivalent to a long absorption path in an ordinary light beam. (Author)

Descriptors :   *ATOMS, *INTERFEROMETERS, ABSORPTION, INTENSITY, LIGHT, MASERS, REFLECTION.

Distribution Statement : APPROVED FOR PUBLIC RELEASE