OPTICAL PROPERTIES OF KCl: Tl IN THE EXTREME ULTRAVIOLET REGION
The optical properties of KCl: Tl in the vacuum ultraviolet range were studied between room and liquid nitrogen temperatures. A new band was observed in both the absorption and excitation spectra on the long wavelength tail of the exciton band, i.e., 7.l9 ev at --18O deg C. From the measurements of the temperature dependence and the emission spectrum, the band is supposed to be associated with a transition in chlorine ions in the neighborhood of a thallium ion. Excitation and emission spectra of fluorescence by spectrum, the band is supposed to be associated with a transition in chlorine ions in the neighborhood of a thallium ion. Excitation and emission spectra of fluorescence by the light in the fundamental band region, as well as thermal glow and optical stimulation curves of phosphorescence, were measured. The process of this luminescence is discussed. (auth)
- Research Organization:
- Tokyo Univ.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-005520
- OSTI ID:
- 4124938
- Journal Information:
- J. Phys. Soc. Japan, Journal Name: J. Phys. Soc. Japan Vol. Vol: 15
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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