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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 21 — Nov. 1, 2010
  • pp: 3598–3600

Laser ceramics with rare-earth-doped anisotropic materials

Jun Akiyama, Yoichi Sato, and Takunori Taira  »View Author Affiliations


Optics Letters, Vol. 35, Issue 21, pp. 3598-3600 (2010)
http://dx.doi.org/10.1364/OL.35.003598


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Abstract

The fabrication of laser-grade anisotropic ceramics by a conventional sintering process is not possible owing to optical scattering at randomly oriented grain boundaries. In this Letter, we report the first (to our knowledge) realization of transparent anisotropic ceramics by using a new crystal orientation process based on large magnetic anisotropy induced by 4 f electrons. By slip casting in a 1.4 T magnetic field and subsequent heat treatments, we could successfully fabricate laser-grade calcium fluorapatite ceramics with a loss coefficient of 1.5 cm 1 .

© 2010 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3390) Lasers and laser optics : Laser materials processing
(160.3380) Materials : Laser materials
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: August 17, 2010
Manuscript Accepted: September 13, 2010
Published: October 21, 2010

Citation
Jun Akiyama, Yoichi Sato, and Takunori Taira, "Laser ceramics with rare-earth-doped anisotropic materials," Opt. Lett. 35, 3598-3600 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-21-3598


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