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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 9 — Sep. 1, 2007
  • pp: 2479–2482

Measurement of the ground-state hyperfine coherence time of Eu 3 + 151 : Y 2 Si O 5

Annabel L. Alexander, Jevon J. Longdell, and Matthew J. Sellars  »View Author Affiliations


JOSA B, Vol. 24, Issue 9, pp. 2479-2482 (2007)
http://dx.doi.org/10.1364/JOSAB.24.002479


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Abstract

We report on Raman echo measurements of the Eu 3 + 151 : Y 2 Si O 5 ground-state hyperfine transition. Using Raman echoes in zero magnetic field the ground-state hyperfine coherence time was observed to be ( 15.5 ± 2 ) ms . When an external magnetic field was applied, the dephasing time of the hyperfine transition was observed to decay nonexponentially, with a decay rate of ( 36 ± 4 ) ms . This nonexponential decay is indicative of the presence of spectral diffusion, similar to that observed in Pr 3 + : Y 2 Si O 5 . This work indicates that under favorable conditions we can expect hyperfine coherence times longer than the value of 30 s recently reported in Pr 3 + Y 2 Si O 5 .

© 2007 Optical Society of America

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(300.6240) Spectroscopy : Spectroscopy, coherent transient
(300.6450) Spectroscopy : Spectroscopy, Raman

ToC Category:
Spectroscopy

History
Original Manuscript: May 23, 2007
Manuscript Accepted: July 12, 2007
Published: August 30, 2007

Citation
Annabel L. Alexander, Jevon J. Longdell, and Matthew J. Sellars, "Measurement of the ground-state hyperfine coherence time of 151Eu3+:Y2SiO5," J. Opt. Soc. Am. B 24, 2479-2482 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-9-2479

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