Optical Absorption and Fluorescence of Oxygen in Alkali Halide Crystals

Luminescence of molecular ions in neutron-irradiated

“…The luminescence properties of molecular O − 2 ions in alkali halide crystals (AHCs), which were grown in oxygen, have been studied well (Rolfe et al, 1961(Rolfe et al, , 1973Rolfe, 1979). These defects are impurities in AHCs.…”

Optical and structural characterization of KBr crystals doped cadmium bromide (CdBr2)

“…According to Günter Gummer [10] and Zehani and Sebais [11], emission bands of KBr grown under oxygen atmosphere in UV-visible region except for the band located at 372 nm are due to the (O 2 À À F + ) centers in the region o400 nm and attributed to O 2 À centers above 400 nm [12,13]. Correlation with intrinsic luminescence properties of alkali halides leads to the assignment of the 375 nm band to emission from Br 2 2 À centers [14].…”

Impurity-Induced Far-Infrared Absorption in KBr and KCl

“…It is found to substitute for the anion with its axis pointing in the <110> direction. The optical absorption and fluorescence of this impurity in KBr has been studied by Rolfe et al (1961). …”