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Optics Letters

Optics Letters


  • Vol. 19, Iss. 16 — Aug. 15, 1994
  • pp: 1216–1218

Decoloration of yttrium orthovanadate laser host crystals by annealing

Y. Nobe, H. Takashima, and T. Katsumata  »View Author Affiliations

Optics Letters, Vol. 19, Issue 16, pp. 1216-1218 (1994)

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Decoloration of a Czochralski-grown YVO4 laser host is studied by evaluation of the optical absorption and the photoluminescence spectrum before and after annealing under various atmospheres. Decoloration of yellow as-grown crystals, as a result of the decrease in the absorption near the absorption edge, occurs independently of the air, N2, and O2 annealing atmospheres. The most dramatic decrease in the absorption is seen in N2. Annealing in N2 atmosphere is suggested to be effective for obtaining the highly transparent crystals.

© 1994 Optical Society of America

Original Manuscript: March 21, 1994
Published: August 15, 1994

Y. Nobe, H. Takashima, and T. Katsumata, "Decoloration of yttrium orthovanadate laser host crystals by annealing," Opt. Lett. 19, 1216-1218 (1994)

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