Optical assessment on a new self-frequency doubling crystal: neodymium-doped lanthanum calcium borate
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 Omega_t are Omega_2 = 4.96×10^−20 cm², Omega_4 = 3.94×10^−20 cm², and Omega_6 = 3.71×10^−20 cm². The radiative lifetime taur is 349 µs. The absorption band at 800 nm has a FWHM of 12 nm. The absorption cross section is sigmaa = 2.40×10^−20 cm², and the emission cross sections at 1070 nm are sigma_X = 3.02×10^−19 cm², sigma_Y = 2.33×10^−19 cm², and sigma_Z = 2.68×10^−19 cm². The measured fluorescence lifetime tauf is 64 µs, and the quantum efficiency epsilon 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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