Author:
Cai Xumin,Lin Xiuqing,Li Guohui,Lu Junye,Hu Ziyu,Zheng Guozong
Abstract
In this paper, a highly deuterated potassium dihydrogen phosphate (DKDP) crystal with sizes up to
$318~\text{mm}\times 312~\text{mm}\times 265~\text{mm}$
was grown by the rapid-growth method. The synthesis tank device was specially designed to synthesize a higher deuterium concentration and high-purity DKDP solution. The deuterium content of the as-grown crystal, which was 97.9%, was determined by two methods, including infrared (IR) spectroscopy and thermo-gravimetric analysis (TGA) measurements. The performances of the 97.9% DKDP crystal, including transmission, absorption coefficient, and laser-induced damage threshold (LIDT) were measured. The results indicate that, in the near-infrared band, the transmission of the 97.9% DKDP crystal is higher than that of KDP and 70% DKDP crystals, and the absorption coefficient is lower. The LIDT of the crystal reached
$23.2~\text{J}\cdot \text{cm}^{-2}$
(R-on-1, 1064 nm, 3 ns), which meets the engineering requirements for use in optical applications.
Publisher
Cambridge University Press (CUP)
Subject
Nuclear Energy and Engineering,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
23 articles.
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