Photon echo of an ultranarrow optical transition of {sup 167}Er{sup 3+} in {sup 7}LiYF{sub 4} crystals
Journal Article
·
· Quantum Electronics (Woodbury, N.Y.)
The longitudinal and transverse relaxation times for a transition between hyperfine sublevels of the lower electronic states of the {sup 4}I{sub 15/2} and {sup 4}I{sub 9/2} multiplets of {sup 167}Er{sup 3+} ions in {sup 7}LiYF{sub 4} crystals have been determined for the first time using two-pulse and stimulated photon echo measurements in zero magnetic field at a temperature of 4 K. The decay of the photon echo signal has been shown to be modulated, which is tentatively attributed to the superhyperfine interaction of the {sup 167}Er{sup 3+} ions with their {sup 19}F{sup −} nearest neighbours. The contributions of various types of interaction to the ultranarrow linewidth (∼24 MHz) of the transition in question are discussed. Our results demonstrate that this optical transition of the {sup 167}Er{sup 3+} ion in {sup 7}LiYF{sub 4} crystals is potentially attractive for use in Raman quantum memory schemes. (paper)
- OSTI ID:
- 22725946
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 9 Vol. 47; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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