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Open AccessArticle

Bridgman Growth of New Nonlinear Optical Crystal (La1 − xSmx)3Ga5.5Nb0.5O14 for Quasi-Parametric Chirped Pulse Amplification

1
School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
2
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
3
Suzhou Research Institute, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 6 Liangfu Road, Taicang, Jiangsu 215400, China
*
Authors to whom correspondence should be addressed.
Crystals 2019, 9(11), 587; https://doi.org/10.3390/cryst9110587
Received: 13 October 2019 / Revised: 5 November 2019 / Accepted: 7 November 2019 / Published: 9 November 2019
(This article belongs to the Special Issue Nonlinear Optics in Crystals and Fibers with Ultra-Fast Laser)
Samarium-doped La3Nb0.5Ga5.5O14 (Sm:LGN) crystals were grown along a (100)-orientation by the Bridgman method for quasi-parametric chirped pulse amplification (QPCPA) applications. The structure of La1-xSxmGN (x = 0.1, 0.2) crystals was the same as that of La3Nb0.5Ga5.5O14 (LGN) crystals. The effective segregation coefficient of Sm3+ in the La0.9Sm0.1GN crystal was 0.140. The full width at half maximum (FWHM) of La1-xSxmGN (x = 0.1,0.2) crystals was lower than 50″, which indicated the high quality of the crystals. The density of the La0.9Sm0.1GN crystal was 5.968 g/cm3 and that of the La0.8Sm0.2GNcrystal was 5.988 g/cm3. The transmittance of the crystals at 532nm and 800nm was all above 73%. The absorption spectra indicated that the crystals had strong absorption peaks at wavelengths of 1544 and 1595 nm. The thermal properties of La1-xSxmGN (x = 0.1, 0.2) crystals were similar to those of the LGN crystals. The laser damage thresholds of La0.9Sm0.1GN and La0.8Sm0.2GN crystals were, respectively, 188.30 and 54.84 TW/cm2 (@800 nm,35 fs). View Full-Text
Keywords: Bridgman growth; nonlinear optics crystal; Sm-doped; La3Ga5.5Nb0.5O14 Bridgman growth; nonlinear optics crystal; Sm-doped; La3Ga5.5Nb0.5O14
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MDPI and ACS Style

Yin, L.; Wang, S.; Xiong, K.; Tu, X.; Xu, J.; Zheng, Y.; Shi, E. Bridgman Growth of New Nonlinear Optical Crystal (La1 − xSmx)3Ga5.5Nb0.5O14 for Quasi-Parametric Chirped Pulse Amplification. Crystals 2019, 9, 587.

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