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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 16, Iss. 9 — May. 1, 1991
  • pp: 666–668

Laser-induced grating measurements of energy migration in Tm,Ho:YAG

Valentina A. French and Richard C. Powell  »View Author Affiliations


Optics Letters, Vol. 16, Issue 9, pp. 666-668 (1991)
http://dx.doi.org/10.1364/OL.16.000666


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Abstract

We report what is to our knowledge the first direct measurement of spatial energy migration among the Tm3+ ions in a Tm,Ho:YAG crystal at room temperature. Four-wave mixing techniques were used to establish and probe transient laser-induced population gratings in the Tm3+ ions. The grating decay rate was measured as a function of the grating spacing. The results show the presence of spatial energy migration among the Tm3+ ions, and the diffusion coefficient of this process was measured to be 4 × 10−7 cm2 s−1 for a sample containing 8.3 × 1020 cm−3 Tm3+ ions.

© 1991 Optical Society of America

History
Original Manuscript: December 10, 1990
Published: May 1, 1991

Citation
Valentina A. French and Richard C. Powell, "Laser-induced grating measurements of energy migration in Tm,Ho:YAG," Opt. Lett. 16, 666-668 (1991)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-16-9-666

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