Accession Number : AD0654283

Title :   TWO-PHOTON STEPWISE ABSORPTION IN ER3+ DOPED SALTS,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LABS DIV

Personal Author(s) : Richman,I. ; Chang,N. C.

Report Date : APR 1967

Pagination or Media Count : 17

Abstract : The ordinary fluorescence of Er(3+) in Y2O3 and LaF3 crystals is observed when the crystals are excited with 6328A He-Ne laser radiation. From the linear power dependence of the 6800A fluorescence and the quadratic power dependence of the 5640 and 3900A fluorescence on the 6328A excitation, a single photon excitation for the 6800A fluorescence and a double-photon stepwise excitation for the 5640 and 3900A fluorescence were proposed. The calculated photon flux of the 5640A fluorescence based on the two-photon stepwise excitation agrees with the estimated observed value. (Author)

Descriptors :   (*PHOTONS, *SPECTROSCOPY), ERBIUM, DOPING, FLUORESCENCE, BAND SPECTRA, CRYSTALS, ABSORPTION, LASERS, EXCITATION, YTTRIUM COMPOUNDS, LANTHANUM COMPOUNDS, RARE EARTH COMPOUNDS

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE