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