Title :
Studies of persistent spectral hole burning in the CaF/sub 2/:Sm/sup 2+/ system
Author :
Beck, W. ; Fedorov, V.V. ; Ricard, D. ; Flytzanis, C.
Author_Institution :
Lab. d´Opt. Quantique, Ecole Polytech., Palaiseau, France
Abstract :
Summary form only given. Using persistent spectral hole burning, rare-earth ions doped in crystalline or glassy matrices may prove useful in optical data storage. In the case of Sm/sup 2+/, persistent spectral hole burning is due to photoionization: the Sm/sup 2+/ is oxidized to form Sm/sup 3+/, and the ejected electron is trapped in the matrix. For applications, it is important to understand the trapping mechanism, to identify the nature of the traps, and to see whether they are stable at room temperature.
Keywords :
calcium compounds; optical hole burning; optical materials; optical storage; photoionisation; samarium; CaF/sub 2/:Sm; CaF/sub 2/:Sm/sup 2+/ system; Sm/sup 2+/; crystalline matrices; ejected electron trapping; glassy matrices; optical data storage; persistent spectral hole burning; photoionization; rare-earth ions; room temperature; stable; Crystallization; Earth; Electron optics; Electron traps; Ionization; Optical harmonic generation; Optical sensors; Optimized production technology; Samarium; Temperature dependence;
Conference_Titel :
Quantum Electronics Conference, 1998. IQEC 98. Technical Digest. Summaries of papers presented at the International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-541-2
DOI :
10.1109/IQEC.1998.680501
