Accession Number : AD0747415

Title :   Utilization of Rare Earth Ions in Single Crystals in Infrared Quantum Counter-Amplifier Device Application.

Descriptive Note : Annual rept. 1 Jul 71-30 Jun 72,

Corporate Author : PURDUE UNIV LAFAYETTE IND DEPT OF CHEMISTRY

Personal Author(s) : Fong,Francis K.

Report Date : 30 JUN 1972

Pagination or Media Count : 82

Abstract : The report describes laser induced infrared quantum counter (optical double resonance) upconversion experiments. Highly efficient infrared upconversion (at 2.03 micrometers) in LaCl3:Pr(3+), LaF3:Pr(3+), and SrCl2:Pr(3+) has been achieved by means of a tunable cw dye laser pump. The report is given in five parts dealing with the following: crystal growth; infrared upconversion in LaCl3:Pr(3+), LaF3:Pr(3+), SrCl2:Pr(3+); Energy transfer processes between rare earth ions in crystals; and quantum scattering processes in radiationless decay of electronically excited rare earth ions in crystals.

Descriptors :   (*INFRARED OPTICAL MATERIALS, *CRYSTAL GROWTH), (*COHERENT RADIATION, FREQUENCY MULTIPLIERS), (*RARE EARTH ELEMENTS, OPTICAL PUMPING), INFRARED DETECTORS, LASERS, FLUORESCENCE, ELECTRON TRANSITIONS, STRONTIUM COMPOUNDS, LANTHANUM COMPOUNDS, CHLORIDES, FLUORIDES, EXCITATION, SINGLE CRYSTALS

Subject Categories : Lasers and Masers
      Infrared Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE