Abstract

Spectroscopic properties of neodymium-doped yttrium orthovanadate crystals were measured in the temperature range between 5 and 350 K. Crystals fabricated by different suppliers, with 0.3 and 1 at% Nd³⁺, were compared. For each temperature, the stimulated emission cross sections of the Nd^{3+ 4}F_3/2 decay to the ⁴I_9/2, ⁴I_11/2, and ⁴I_13/2 states were obtained using the Fuchtbauer-Ladenburg and the reciprocity techniques. Nd:YVO₄ shows higher absorption at room temperature and higher stimulated emission cross section with similar variation with temperature when compared with Nd:YAG. The anomalous dependence on temperature of the Nd^{3+ 4}F_3/2 excited-state lifetime is discussed and an explanation is suggested.

© 2009 Optical Society of America

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History
Original Manuscript: July 24, 2009
Manuscript Accepted: September 4, 2009
Published: October 16, 2009

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Author Affiliations

Hans P. Jenssen

AC Materials Inc.

Francesco Cornacchia, Mauro Tonelli

Universitá di Pisa

Giorgio Turri, Michael Bass

University of Central Florida

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