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| 新型可调远红外激光光谱仪及CHF3和SO2的纯转动光谱 | |
| 引用本文： | 黄光明,祖丽丽,段传喜,李奉延,刘煜炎.新型可调远红外激光光谱仪及CHF3和SO2的纯转动光谱[J].光谱学与光谱分析,2003,23(4):714-717. |
| 作者姓名： | 黄光明 祖丽丽 段传喜 李奉延 刘煜炎 |
| 作者单位： | 1. 华中师范大学物理系,湖北,武汉,430079;中科院武汉物理与数学研究所,湖北,武汉,430071 2. Department of Chemistry University of Cambridge Cambridge CB2 1EW UK 3. 中科院武汉物理与数学研究所,湖北,武汉,430071 4. 华东师范大学物理系,上海,200062;华中师范大学物理系,湖北,武汉,430079 |
| 基金项目： | 中国科学院-英国皇家学会合作项目 (Q72 5)，国家自然科学基金 (No 1 0 1 740 2 0 )资助 |
| 摘 要： | 文章报道与英国剑桥大学合作建立的新型可调远红外激光光谱仪的技术特点和工作原理。该光谱仪利用二极管的非线性特性 ,将CO2 激光泵浦产生的远红外激光与微波进行混频 ,得到边带远红外激光辐射 ,调节微波频率来实现边带远红外激光的扫描。利用该谱仪观测了CHF3 振动基态J =34～ 33,K =0 ～15和SO2 基态的 194,16～ 183 ,15,382 ,3 6～ 373 ,3 5纯转动光谱 ,并对它们进行了标识。 |
| 关 键 词： | 可调远红外 激光光谱 CHF3 SO2 |
| 文章编号： | 1000-0593(2003)04-0714-04 |
| 修稿时间： | 2002年4月27日 |
Newly Designed Tunable Far Infrared Laser Spectrometer and Pure Rotational Spectra of CHF3 and SO2 |
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| HUANG Guang-ming ,ZU Li-li ,DUAN Chuan-xi ,LI Feng-yan ,LIU Yu-yan.Newly Designed Tunable Far Infrared Laser Spectrometer and Pure Rotational Spectra of CHF3 and SO2[J].Spectroscopy and Spectral Analysis,2003,23(4):714-717. | |
| Authors: | HUANG Guang-ming ZU Li-li DUAN Chuan-xi LI Feng-yan LIU Yu-yan |
| Affiliation: | HUANG Guang-ming 1,2,ZU Li-li 3,DUAN Chuan-xi 2,LI Feng-yan 2,LIU Yu-yan 4,1 1. Department of Physics,Central China Normal University,Wuhan 430079,China 2. Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences,Wuhan 430071,China 3. Department of Chemistry,University of Cambridge,Cambridge CB2 1EW,UK 4. Department of Physics,East China Normal University,Shanghai 200062,China |
| Abstract: | The principle and technical characters of a newly designed tunable far infrared laser spectrometer in collaboration with Cambridge university are introduced. A sideband TuFIR laser was generated by non-linear mixing of a FIR gas laser pumped with a CO_2 laser and a tunable microwave on a GaAs Schottky barrier diode. With the tunablity of microwave frequency, the sidebands was thus tunable, providing great convenience for pure rotational spectroscopy. Using this spectrometer, we observed rotational spectra of the ground states of CHF_3 from the J =34-33 ( K =0-15) transition and of SO_2 from 19_ 4, 16 -18_ 3, 15 , and 38_ 2, 36 -37_ 3, 35 transitions. |
| Keywords: | Tunable far infrared Laser spectroscopy CHF_3 SO_2 |
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