TWO-PHOTON STEPWISE ABSORPTION IN ER3+ DOPED SALTS,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1967
- Accession Number
- AD0654283
Entities
People
- I. Richman
- N. C. Chang
Organizations
- The Aerospace Corporation