BLEACHING AND RECOVERY OF F CENTERS IN KCl

Journal Article · Wed Feb 15 04:00:00 EST 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.121.1072· OSTI ID:4083858

Silverman, L E; Grossweiner, L I

F centers in KCI are optically bleached at room temperature with a minimum light energy of 20.1 plus or minus 1.0 ev per F center. The F band is recovered on further roomtemperature x raying with a minimum energy of 69 plus or minus 5 ev per F center. The increase in the M and R bands during optical bleaching of the F band is nullified upon the recovery of the F band by further x raying. The recovery kinetics are of second order in the number of optically bleached F centers with a rate-constant of (7.9 plus or minus 0.8) x 10/sup -20/ cm/sup 3//F center-sec. The rate law requires an energy transfer from the bulk lattice and is consistent with an exciton mechanism. (auth)

• Research Organization: Illinois Inst. of Tech., Chicago
• NSA Number: NSA-15-011745
• OSTI ID: 4083858
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 121; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BLEACHING
COLOR
CRYSTALS
DEFECTS
ENERGY
F CENTERS
IRRADIATION
LATTICES
LIGHT
METALS, CERAMICS, AND OTHER MATERIALS
POTASSIUM CHLORIDES
RADIATION EFFECTS
STABILITY
VACANCIES
X RADIATION