The Experts below are selected from a list of 288 Experts worldwide ranked by ideXlab platform
H. Han - One of the best experts on this subject based on the ideXlab platform.
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Spectroscopic manifestation for the isotopic substitution in Potassium Dihydrogen Phosphate
Journal of Alloys and Compounds, 2006Co-Authors: Wei Liu, H. R. Xia, Zongcheng Ling, Y.l. Wei, Y.k. Liu, Xueling Wang, H. HanAbstract:Abstract The normal vibration spectra of Potassium Dihydrogen Phosphate (KDP) and its deuterated analogue K(D x H 1− x )PO 4 (DKDP), which arise mainly from internal vibrations of PO 4 tetrahedrons, were recorded by the micro-Raman spectrophotometer system. The four characteristic internal vibration modes of the (H/D) 2 PO 4 anion in (D)KDP are assigned by comparing their polarized Raman spectra. The bands of H-vibrations recorded in the FTIR spectra, which have been interpreted as the O–H/D stretching modes, the in-plane bending, and the out-of-plane bending vibrations, are tentatively assigned as well. The frequency ratio of the O–H/D modes due to the hydrogen or deuterium is 1/1.37, which coincides with the ratio of square root of the reduced mass of O–H and O–D.
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Characterization of deuterated Potassium Dihydrogen Phosphate single crystals grown by circulating method
Journal of Crystal Growth, 2006Co-Authors: W.l. Liu, H. R. Xia, Xiuwen Wang, Zongcheng Ling, D. G. Ran, Y.l. Wei, Y.k. Liu, Sixiu Sun, H. HanAbstract:Deuterated Potassium Dihydrogen Phosphate (DKDP) crystals were grown under constant temperature and supersaturation by the solution circulating method. Temperature uniformity and appropriate mass transfer could be easier to achieve in comparison with other crystallization systems, because the overall volume of the employed two-vessel-four-zone crystallizer was significantly reduced. Optical transmission, Raman and infrared spectra, thermal diffusivities and laser damage thresholds of both Potassium Dihydrogen Phosphate (KDP) and DKDP crystals were measured and compared with reference data. The excellent optical properties of the DKDP crystals obtained had demonstrated that the new crystallizer design is useful for growing large DKDP crystals of good quality and with greatly reduced heavy-water consumption.
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Raman scattering from deuterated Potassium Dihydrogen Phosphate crystals
Materials Chemistry and Physics, 2005Co-Authors: Wei Liu, H. R. Xia, Xiuwen Wang, H. HanAbstract:Abstract The normal vibration modes of deuterated Potassium Dihydrogen Phosphate (DKDP) crystals were analyzed basing on the space group theory. The lattice vibration spectra of DKDP, which arise mainly from internal vibrations of P–O tetrahedrons, were recorded by a micro-Raman spectrophotometer system. The four characteristic internal vibration modes of the D2PO4 anion in KD2PO4 are assigned as 880 cm−1 ( υ 1 , asymmetrical P(OD)2 stretching vibration), 356 cm−1 ( υ 2 , in-plane P(OD)2 bending vibration), 512/540 cm−1 ( υ 3 , PO2 bending vibration) and 967 cm−1 ( υ 4 , in-plane PO2 symmetrical stretching vibration). Excellent agreement has been obtained between the theoretical studies and experimental investigations.
Wei Liu - One of the best experts on this subject based on the ideXlab platform.
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Spectroscopic manifestation for the isotopic substitution in Potassium Dihydrogen Phosphate
Journal of Alloys and Compounds, 2006Co-Authors: Wei Liu, H. R. Xia, Zongcheng Ling, Y.l. Wei, Y.k. Liu, Xueling Wang, H. HanAbstract:Abstract The normal vibration spectra of Potassium Dihydrogen Phosphate (KDP) and its deuterated analogue K(D x H 1− x )PO 4 (DKDP), which arise mainly from internal vibrations of PO 4 tetrahedrons, were recorded by the micro-Raman spectrophotometer system. The four characteristic internal vibration modes of the (H/D) 2 PO 4 anion in (D)KDP are assigned by comparing their polarized Raman spectra. The bands of H-vibrations recorded in the FTIR spectra, which have been interpreted as the O–H/D stretching modes, the in-plane bending, and the out-of-plane bending vibrations, are tentatively assigned as well. The frequency ratio of the O–H/D modes due to the hydrogen or deuterium is 1/1.37, which coincides with the ratio of square root of the reduced mass of O–H and O–D.
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Raman scattering from deuterated Potassium Dihydrogen Phosphate crystals
Materials Chemistry and Physics, 2005Co-Authors: Wei Liu, H. R. Xia, Xiuwen Wang, H. HanAbstract:Abstract The normal vibration modes of deuterated Potassium Dihydrogen Phosphate (DKDP) crystals were analyzed basing on the space group theory. The lattice vibration spectra of DKDP, which arise mainly from internal vibrations of P–O tetrahedrons, were recorded by a micro-Raman spectrophotometer system. The four characteristic internal vibration modes of the D2PO4 anion in KD2PO4 are assigned as 880 cm−1 ( υ 1 , asymmetrical P(OD)2 stretching vibration), 356 cm−1 ( υ 2 , in-plane P(OD)2 bending vibration), 512/540 cm−1 ( υ 3 , PO2 bending vibration) and 967 cm−1 ( υ 4 , in-plane PO2 symmetrical stretching vibration). Excellent agreement has been obtained between the theoretical studies and experimental investigations.
Zhang Xixiang - One of the best experts on this subject based on the ideXlab platform.
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Transmission spectra study of sulfate substituted Potassium Dihydrogen Phosphate
Laser Physics Letters, 2013Co-Authors: Li Liang, Zhang Jianqin, Sun Xun, Zhang Qiang, Zhao Xian, Zhang XixiangAbstract:Potassium Dihydrogen Phosphate (KDP) crystals with different amounts of sulfate concentration were grown and the transmittance spectrum was studied. A crystal with high sulfate replacement density exhibits heavy absorption property in the ultraviolet region which confirms and agrees well with former results.
H. R. Xia - One of the best experts on this subject based on the ideXlab platform.
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Spectroscopic manifestation for the isotopic substitution in Potassium Dihydrogen Phosphate
Journal of Alloys and Compounds, 2006Co-Authors: Wei Liu, H. R. Xia, Zongcheng Ling, Y.l. Wei, Y.k. Liu, Xueling Wang, H. HanAbstract:Abstract The normal vibration spectra of Potassium Dihydrogen Phosphate (KDP) and its deuterated analogue K(D x H 1− x )PO 4 (DKDP), which arise mainly from internal vibrations of PO 4 tetrahedrons, were recorded by the micro-Raman spectrophotometer system. The four characteristic internal vibration modes of the (H/D) 2 PO 4 anion in (D)KDP are assigned by comparing their polarized Raman spectra. The bands of H-vibrations recorded in the FTIR spectra, which have been interpreted as the O–H/D stretching modes, the in-plane bending, and the out-of-plane bending vibrations, are tentatively assigned as well. The frequency ratio of the O–H/D modes due to the hydrogen or deuterium is 1/1.37, which coincides with the ratio of square root of the reduced mass of O–H and O–D.
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Characterization of deuterated Potassium Dihydrogen Phosphate single crystals grown by circulating method
Journal of Crystal Growth, 2006Co-Authors: W.l. Liu, H. R. Xia, Xiuwen Wang, Zongcheng Ling, D. G. Ran, Y.l. Wei, Y.k. Liu, Sixiu Sun, H. HanAbstract:Deuterated Potassium Dihydrogen Phosphate (DKDP) crystals were grown under constant temperature and supersaturation by the solution circulating method. Temperature uniformity and appropriate mass transfer could be easier to achieve in comparison with other crystallization systems, because the overall volume of the employed two-vessel-four-zone crystallizer was significantly reduced. Optical transmission, Raman and infrared spectra, thermal diffusivities and laser damage thresholds of both Potassium Dihydrogen Phosphate (KDP) and DKDP crystals were measured and compared with reference data. The excellent optical properties of the DKDP crystals obtained had demonstrated that the new crystallizer design is useful for growing large DKDP crystals of good quality and with greatly reduced heavy-water consumption.
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Raman scattering from deuterated Potassium Dihydrogen Phosphate crystals
Materials Chemistry and Physics, 2005Co-Authors: Wei Liu, H. R. Xia, Xiuwen Wang, H. HanAbstract:Abstract The normal vibration modes of deuterated Potassium Dihydrogen Phosphate (DKDP) crystals were analyzed basing on the space group theory. The lattice vibration spectra of DKDP, which arise mainly from internal vibrations of P–O tetrahedrons, were recorded by a micro-Raman spectrophotometer system. The four characteristic internal vibration modes of the D2PO4 anion in KD2PO4 are assigned as 880 cm−1 ( υ 1 , asymmetrical P(OD)2 stretching vibration), 356 cm−1 ( υ 2 , in-plane P(OD)2 bending vibration), 512/540 cm−1 ( υ 3 , PO2 bending vibration) and 967 cm−1 ( υ 4 , in-plane PO2 symmetrical stretching vibration). Excellent agreement has been obtained between the theoretical studies and experimental investigations.
Li Liang - One of the best experts on this subject based on the ideXlab platform.
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Transmission spectra study of sulfate substituted Potassium Dihydrogen Phosphate
Laser Physics Letters, 2013Co-Authors: Li Liang, Zhang Jianqin, Sun Xun, Zhang Qiang, Zhao Xian, Zhang XixiangAbstract:Potassium Dihydrogen Phosphate (KDP) crystals with different amounts of sulfate concentration were grown and the transmittance spectrum was studied. A crystal with high sulfate replacement density exhibits heavy absorption property in the ultraviolet region which confirms and agrees well with former results.