Photodynamics and stability of laser active (F+2)A centers
Abstract
In additively colored KCl : Li crystals, the (F+2)A color center laser operates through a photodynamic equilibrium in which UV excitation generates a partial conversion of (F2)A centers to (F+2)A. Evidence is presented which shows that continuous UV exposure is necessary to sustain laser action because of the neutralization of (F+2)A centers which occurs through the capture of F′A center electrons. The bleaching of FA centers results directly from absorption of the 1.3-μm pump radiation. Since the absorption is extremely weak, only modest UV intensities are needed for intense cw laser operation.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 01, 1983
- Source ID
- 10.1063/1.331934
Entities
People
- Clifford R. Pollock
- Irwin Schneider
Organizations
- Cornell University
- United States Naval Research Laboratory