Accession Number : ADD009244

Title :   Laser Simulated Raman Molecular Beam Time and Frequency Standard.

Descriptive Note : Patent,


Personal Author(s) : Ezekiel,Shaoul ; Leiby,Clare C ; Picard,Richard H ; Willis,Charles R ; Hackel,Richard P

Report Date : 09 Feb 1982

Pagination or Media Count : 9

Abstract : A laser stimulated Raman molecular beam time and frequency standard utilizes a first electromagnetic beam at a first preselected frequency to pump a molecular beam at a first preselected point along the beam to state select the beam. A second electromagnetic beam (produced from either a different electromagnetic source than utilized to produce the first beam or produced from a portion of the first beam) at a second preselected frequency and a third electromagnetic beam at the first frequency simultaneously pump the molecules of the state selected molecular beam at a second point along the beam in a stimulated Raman process. By locking the frequency difference of the first and second electromagnetic beams to a specific resonant frequency, a time and frequency standard can be produced.

Descriptors :   *Patents, *Time standards, *Frequency standards, Atomic clocks, Molecular beams, Raman spectra, Laser pumping, Control, Locking(electronics)

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE