Accession Number : AD0285515

Title :   INVESTIGATIONS OF THE OPTICAL DETECTION OF HYPERFINE RESONANCES IN ALKALI HALIDES

Corporate Author : ROCHESTER UNIV NY INST OF OPTICS

Personal Author(s) : ALLEY, C.O.

Report Date : 15 MAY 1962

Pagination or Media Count : 1

Abstract : The matrix elements needed for optical pumping calculations in atomic H are tabulated. Stochastic relaxation matrices assuming randomization of electron spin are given. Stochastic pumping matrices neglecting interference terms are presented. Curves giving the equilibrium ground state populations as a function of the ratio of optical pumping time constant to relaxation time constant were obtained by digital computation using these matrices. Interference terms are important in atomic H since the excited hyperfine splittings are small. An evaluation of these terms for the case of sigma-pumping is presented. An approximate numerical calculation for this case shows that the equilibrium populations are changed only by 5-10%, so the curves given are useful as rough experimental guides. (Author)

Descriptors :   *HYDROGEN, *HYPERFINE STRUCTURE, *RESONANCE, *RUBIDIUM, ALKALI METALS, ATOMS, ELECTRON TRANSITIONS, MATHEMATICAL ANALYSIS, RELAXATION TIME, VAPORS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE