THz spectra study of MgF2 crystals
文献类型：期刊论文
| 作者 | Hou, BH ; Shao, M ; Xu, XL ; Wang, L ; Wang, JY ; Fan, ZD |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2007 |
| 卷号 | 56期号:3页码:1370 |
| ISSN号 | 1000-3290 |
| 中文摘要 | THz (terahertz) properties of MgF2 crystal (sample 1) and MgF2 : Co crystal (sample 2) is measured using transmission THz time domain spectroscopy in the frequency range between 0.5 and 2.5 THz. The absorption coefficients a(v) of sample 1 increases and has a maximum, 24 cm(-1) with increasing frequency v from 0.5 THz to 2.5 THz. The absorption coefficient of sample 2 is much larger than that of the sample I, and its absorption band edge of the crystal lattice shifts to lower frequency side because of the dopant Co. Moreover, there is an absorption peak at 1.9THz and the absorption coefficient is greater than 70 cm(-1), the force constant K of F- -Co2+ ionic chemical bond stretch vibration calculated from this peak is 3.40 x 10(-2) N/cm. The THz spectroscopy can be an important technique for research of chemical bond in crystal. Real dielectric functions between 0.5 and 2.5 THz of the two samples are calculated by relations between optical constants. The epsilon(1) (v) of sample 1 varies from 4.67 to 4.73 and epsilon(1) (v) of sample 2 varies from 4.62 to 5.01. |
| 收录类别 | SCI |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45892]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Hou, BH,Shao, M,Xu, XL,et al. THz spectra study of MgF2 crystals[J]. ACTA PHYSICA SINICA,2007,56(3):1370. |
| APA | Hou, BH,Shao, M,Xu, XL,Wang, L,Wang, JY,&Fan, ZD.(2007).THz spectra study of MgF2 crystals.ACTA PHYSICA SINICA,56(3),1370. |
| MLA | Hou, BH,et al."THz spectra study of MgF2 crystals".ACTA PHYSICA SINICA 56.3(2007):1370. |
入库方式： OAI收割
来源：物理研究所
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