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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 22, Iss. 4 — Apr. 1, 2005
  • pp: 831–834

Optical assessment on a new self-frequency doubling crystal: neodymium-doped lanthanum calcium borate

Rui Guo, Yicheng Wu, Peizhen Fu, and Fangli Jing  »View Author Affiliations


JOSA B, Vol. 22, Issue 4, pp. 831-834 (2005)
http://dx.doi.org/10.1364/JOSAB.22.000831


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Abstract

A new, to our knowledge, neodymium-doped lanthanum calcium borate crystal (Nd3+:La2CaB10O19, Nd:LCB) has been grown by the flux method. The spectroscopic parameters for Nd:LCB crystal have also been calculated based on Judd–Ofelt theory. The intensity parameters Ωt are Ω2=4.96×10-20 cm2,Ω4=3.94×10-20 cm2, and Ω6=3.71×10-20 cm2. The radiative lifetime τr is 349 µs. The absorption band at 800 nm has a FWHM of 12 nm. The absorption cross section is σa=2.40×10-20 cm2, and the emission cross sections at 1070 nm are σX=3.02×10-19 cm2,σY=2.33×10-19 cm2, and σZ=2.68×10-19 cm2. The measured fluorescence lifetime τf is 64 µs, and the quantum efficiency η is 18.3%. In comparison with other Nd-doped laser crystals, the calculated parameters show that Nd:LCB crystal satisfies the fundamental spectral condition for laser emission.

© 2005 Optical Society of America

OCIS Codes
(160.0160) Materials : Materials
(160.3380) Materials : Laser materials
(160.4330) Materials : Nonlinear optical materials
(300.1030) Spectroscopy : Absorption
(300.2140) Spectroscopy : Emission

Citation
Rui Guo, Yicheng Wu, Peizhen Fu, and Fangli Jing, "Optical assessment on a new self-frequency doubling crystal: neodymium-doped lanthanum calcium borate," J. Opt. Soc. Am. B 22, 831-834 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-4-831

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