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| 碲镉汞体材料的显微Raman光谱 | |
| 引用本文： | 黄晖,唐莹娟,许京军,张存洲,潘顺臣,张光寅.碲镉汞体材料的显微Raman光谱[J].红外技术,2002,24(5):37-41. |
| 作者姓名： | 黄晖 唐莹娟 许京军 张存洲 潘顺臣 张光寅 |
| 作者单位： | 1. 昆明物理研究所,云南,昆明,650223;南开大学物理科学学院光子学中心,天津,300071 2. 昆明物理研究所,云南,昆明,650223 3. 南开大学物理科学学院光子学中心,天津,300071 |
| 摘 要： | 利用Raman显微镜测量了ACRT-Bridgman方法和Te溶剂方法生长的碲镉汞体材料的显微Raman光谱，在碲镉汞体材料的显微Raman光谱中识别出了碲镉汞的基本光学振动模，由此证明了碲镉汞按晶格振动的分类方法属于二模混晶；识别出了一个来源于类HgTe的TO1模 LO1模的二级Raman散射峰；观察到了碲镉汞体材料中两个新的Raman散射峰，分别位于662cm^-1和749cm^-1；观察到了碲镉汞基本光学振动模的TO1模与LO1模的Raman散射强度比的变化，指出该现象是由于Raman散射几何配置不同引起的。 |
| 关 键 词： | 碲镉汞晶体 显微Raman光谱 光学振动膜 Raman散射 |
| 文章编号： | 1001-8891(2002)05-0037-05 |
| 修稿时间： | 2002年5月31日 |
Micro-Raman Spectra of Hg1-xCdxTe Bulk Crystals |
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| HUANG Hui ,TANG Ying juan ,XU Jing jun ,ZHANG Cun zhou ,PAN Shun chen ,ZHANG Guang yin.Micro-Raman Spectra of Hg1-xCdxTe Bulk Crystals[J].Infrared Technology,2002,24(5):37-41. | |
| Authors: | HUANG Hui TANG Ying juan XU Jing jun ZHANG Cun zhou PAN Shun chen ZHANG Guang yin |
| Affiliation: | HUANG Hui 1,2,TANG Ying juan 1,XU Jing jun 2,ZHANG Cun zhou 2,PAN Shun chen 1,ZHANG Guang yin 2 |
| Abstract: | The basic phonon vibrations in MCT were recognized in the micro Raman spectra of MCT bulk crystals: The HgTe like TO 1 and LO 1 phonon vibrational modes located at 121 cm -1 and 139 cm -1 , respectively. The CdTe like TO 2 and LO 2 phonon vibrational modes located nearby 154 cm -1 . A Raman shift at 260 cm -1 was proposed to belong to the two phonon mode TO 1+LO 1. Therefore we can confirm that MCT belongs to two mode mix crystal. Two new Raman peaks at 662 cm -1 and 749 cm -1 were observed in MCT bulk material. The intensity ratio of TO 1 and LO 1 in MCT was observed to be different which was explained in terms of the different Raman geometry arrangement. |
| Keywords: | Hg 1- x Cd x Te crystal micro Raman spectra |
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