| 光谱学与光谱分析 |
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| THz-Ultraviolet Spectra of KDP Crystal |
| HOU Bi-hui1, WANG Ya-li2, CHANG Xin-an1, LI Shun-suo1, ZHAO Guo-zhong3, HAO Wei1 |
1. College of Applied Sciences, College of Material Sciences and Engineering, Beijing University of Technology, Beijing 100124, China
2. College of Material Science and Opt-Electric Technology, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
3. Department of Physics, Capital Normal University, Beijing 100037, China |
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Abstract THz time domain spectrum of KH2PO4 crystal in the range from 0.2 to 1.6 THz, the far-infrared spectrum in the range from 50-4 000 cm-1，and ultraviolet-visible-infrared spectrum in the range from 200-2 000 nm were measured at the room temperature. The energy band gap Eg of KH2PO4 Crystal is 5.91 eV. There is a wide band of the phonon absorption in the KDP crystal. The values of the absorption coefficient are 35-80 cm-1 in the range from 0.2 to 205.5 THz. The end of the low frequency of the optical phonon model is smaller than 0.2 THz. The highest frequency νLO of the longitudinal optical phonon model LO is about 205.5 THz, and the force constant K of H—O ionic chemical bond stretch vibration from the ωLO was calculated to be 13.13 N·cm-1.
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Received: 2009-12-12
Accepted: 2010-03-16
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Corresponding Authors:
HOU Bi-hui
E-mail: houbh@bjut.edu.cn
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[1] Verghese S，McIntosh K A，Brown E R. IEEE Trans. Microwave Theory and Techniques，1997，45: 1301.
[2] WANG Shao-hong, XU Jing-zhou, WANG Li, et al(王少宏，许景周，汪 力，等). Physics(物理), 2001, 31(10): 612.
[3] YU Bin, HUANG Zhen, WANG Xiao-yan, et al(于 斌, 黄 振, 王晓燕, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2009, 29(9): 2334.
[4] ZHANG Lei，XU Xin-long，LI Fu-li(张 蕾，徐新龙，李福利). Chinese Journal of Quantum Electronics(量子电子学报), 2005，22(2): 129.
[5] De Mange P, Carr C W，Radousky H B，et al. Proceedings of the SPIE-The International Society for Optical Engineering, 2004, 5337: 47.
[6] Sapaev U K，Kutzner J，Finsterbusch K. Optical and Quantum Electronics, 2005，37：515.
[7] Focht G，Downer M C. IEEE Journal of Quantum Electronics, 1988，24：431.
[8] Yoshimi Kawahata，Yasunori Tominaga. Solid State Communications, 2008，145：218.
[9] Koval S, Kohanoff J, Migoni R L, et al. Computational Materials Science，2001, 22：87.
[10] YUE Wei-wei, WANG Wei-ning, ZHAO Guo-zhong, et al(岳伟伟，王卫宁，赵国忠，等). Acta Physica Sinica(物理学报)，2005，54：3094.
[11] ZHANG Ke-cong, WANG Xi-min(张克从，王希敏). Materials Science of Nonlinear Optical Crystal(非线性光学晶体材料科学·第2版). Beijing：Science Press(北京：科学出版社)，2005. 117.
[12] Kittel C. Introduction to Solid State Physics, 6th Edition. New York: John Wiley & Sons，1986. 90.
[13] DENG Yu-qiang, XING Qi-rong, LANG Li-ying, et al(邓玉强，邢岐荣，郎利影，等). Acta Physica Sinica(物理学报)，2005，54：5224.
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