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Optics Letters

Optics Letters

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  • Vol. 26, Iss. 21 — Nov. 1, 2001
  • pp: 1681–1683

Ultrashort-laser-pulse-induced persistent spectral hole burning of Eu3+ in sodium borate glasses

Koji Fujita, Masayuki Nishi, and Kazuyuki Hirao  »View Author Affiliations


Optics Letters, Vol. 26, Issue 21, pp. 1681-1683 (2001)
http://dx.doi.org/10.1364/OL.26.001681


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Abstract

We have observed persistent spectral hole burning (PSHB) in Eu3+ -doped sodium borate glasses irradiated with near-IR femtosecond laser pulses. As-prepared glasses, i.e., glasses melted in air, do not show PSHB even at low temperatures (~77K) , but room-temperature PSHB occurs in the irradiated glasses. The exposure to IR radiation causes both the reduction of Eu3+ to Eu2+ and the formation of intrinsic defects. We propose that the photoinduced redistribution of electric charges between Eu3+ to Eu2+ is responsible for the occurrence of PSHB.

© 2001 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.5690) Materials : Rare-earth-doped materials
(300.6360) Spectroscopy : Spectroscopy, laser

Citation
Koji Fujita, Masayuki Nishi, and Kazuyuki Hirao, "Ultrashort-laser-pulse-induced persistent spectral hole burning of Eu3+ in sodium borate glasses," Opt. Lett. 26, 1681-1683 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-21-1681

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