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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 18, Iss. 5 — May. 1, 2001
  • pp: 673–678

Dynamics of broadband accumulated spectral gratings in Tm 3+ :YAG

Mingzhen Tian, Jun Zhao, Zachary Cole, Randy Reibel, and William Randall Babbitt  »View Author Affiliations


JOSA B, Vol. 18, Issue 5, pp. 673-678 (2001)
http://dx.doi.org/10.1364/JOSAB.18.000673


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Abstract

High-bandwidth accumulated spectral gratings are experimentally studied in Tm3+:YAG by the stimulated-photon-echo technique with a mode-locked picosecond Ti:sapphire laser system. The experimental results show that the spectral grating builds up and decays on the time scale of the metastable-state lifetime (∼10 ms), provided that the time interval of accumulating shots is of the order of the excited-state lifetime (800 μs). An echo efficiency of the order of 0.1% was achieved with pulse intensities 2 orders of magnitude less than those needed for a single-shot process. These results fit well an analytic solution of the Bloch equations and a three-level system relaxation model.

© 2001 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(050.2770) Diffraction and gratings : Gratings
(160.5690) Materials : Rare-earth-doped materials
(200.4740) Optics in computing : Optical processing
(300.6240) Spectroscopy : Spectroscopy, coherent transient
(300.6250) Spectroscopy : Spectroscopy, condensed matter

Citation
Mingzhen Tian, Jun Zhao, Zachary Cole, Randy Reibel, and William Randall Babbitt, "Dynamics of broadband accumulated spectral gratings in Tm 3+ :YAG," J. Opt. Soc. Am. B 18, 673-678 (2001)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-18-5-673

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