Journal
CRYSTENGCOMM
Volume 24, Issue 20, Pages 3800-3806Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ce00134a
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Funding
- Strategic Priority Research Program of Chinese Academy of Sciences, China [XDA25020311]
- National Natural Science Foundation of China [51832009]
- NSAF [U1930126]
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In this study, a two-inch b-axis Er0.12Y0.88COB crystal was successfully grown using the Czochralski method. The crystalline quality, composition, and optical homogeneity of the Er:YCOB crystal were evaluated. The results demonstrate that the Er:YCOB crystal has good crystalline quality, compositional homogeneity, and potential applications in the mid-infrared band.
Yttrium calcium oxyborate (YCOB) crystals are excellent candidate materials for nonlinear optical (NLO) applications. In this work, a two-inch b-axis Er0.12Y0.88COB crystal was grown successfully by the Czochralski method. Samples used for performance evaluation were cut from the top, middle and bottom parts of the as-grown crystal. Rocking curves, inductively coupled plasma-optical emission spectroscopy (ICP-OES), energy dispersive spectrometry (EDS), transmission spectra and an interferometer were used to determine the crystalline quality, composition and optical homogeneity of the Er:YCOB crystal. The full width at half maximum (FWHM) value of the rocking curve of Er:YCOB is about 30 ''. The Er3+ and Y3+ distribution and UV cut-off value revealed the high compositional homogeneity of the Er:YCOB crystal. The specific heat and thermal conductivity of Er:YCOB were studied and are slightly smaller than that of pure YCOB. In addition, an absorption peak at around 1537 nm makes Er:YCOB a potential crystal for quasi-parametric chirped-pulse amplification (QPCPA) applications in the mid-infrared band.
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