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Growth and characterization of self-Q-switched Nd:Cr:YVO4 crystal |
Optics Express, Vol. 20, Issue 3, pp. 2178-2183 (2012)
http://dx.doi.org/10.1364/OE.20.002178
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Abstract
A Nd:Cr:YVO4 crystal was grown by the Czochralski method for the first time to our knowledge. Its structure and cell parameter have been studied by X-ray powder diffraction (XRPD) analysis. Polarized absorption spectra were measured at room temperature, which showed that the absorption bands display polarization character and an absorption band of Cr5+ ions at 1110 nm enables the crystal to be a self-Q-switched laser material. We also found that the absorption of Cr5+ ions became much larger and its self-Q-switched laser performance became much better when the Nd:Cr:YVO4 crystal was annealed because the annealing induces more Cr ions to become those with + 5 valence. In the self-Q-switched laser, the maximum output power, shortest pulse width, and largest pulse energy were obtained to be 120 mW, 85.8 ns, and 0.79μJ, respectively.
© 2012 OSA
OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3540) Lasers and laser optics : Lasers, Q-switched
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: November 23, 2011
Revised Manuscript: December 31, 2011
Manuscript Accepted: January 10, 2012
Published: January 17, 2012
Citation
Z.B. Pan, B. Yao, H. H. Yu, H. H. Xu, Z. P. Wang, J. Y. Wang, and H. J. Zhang, "Growth and characterization of self-Q-switched Nd:Cr:YVO4 crystal," Opt. Express 20, 2178-2183 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-3-2178
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