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Abstract:
实验测量了室温下磷酸二氢钾KH2PO4(KDP)晶体0.2~1.6 THz的时域光谱,以及50~4000cm-1范围内的远红外光谱,200~2000 nm的紫外-可见-红外光谱.KDP晶体的禁带宽度是5.91 eV.在测量范围内有一个很宽的声子吸收带.从0.2~205.5 THz吸收系数在35~80 cm-1,声子吸收的低频端小于0.2 THz.最高的纵光学模声子的频率VLO大约是205.5 THz,由此求出这支声子的H-0键的力常数为13.13 N·cm-1.
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光谱学与光谱分析
ISSN: 1000-0593
Year: 2010
Issue: 11
Volume: 30
Page: 2881-2884
0 . 7 0 0
JCR@2022
ESI Discipline: CHEMISTRY;
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ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 2
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30 Days PV: 0
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