High-resolution heterodyne spectroscopy using a tunable quantum cascade laser around 3.5 THz
文献类型：期刊论文
| 作者 | Ren, Y.1,2,6; Hovenier, J. N.6; Higgins, R.3; Gao, J. R.4,6; Klapwijk, T. M.6; Shi, S. C.1; Klein, B.5; Kao, T. -Y.7; Hu, Q.7; Reno, J. L.8 |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2011-06-06 |
| 卷号 | 98期号:23页码:231109 |
| 英文摘要 | A frequency tunable terahertz heterodyne spectrometer, based on a third-order distributed feedback quantum cascade laser as a local oscillator, has been demonstrated by measuring molecular spectral lines of methanol (CH(3)OH) gas at 3.5 THz. By varying the bias voltage of the laser, we achieved a tuning range of similar to 1 GHz of the lasing frequency, within which the molecular spectral lines were recorded. The measured spectra show excellent agreement with modeled ones. By fitting we derived the lasing frequency for each bias voltage accurately. The ultimate performance of the receiver including the resolution of noise temperature and frequency is also addressed. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3599518] |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Physics, Applied |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | WIRE LASER ; TERAHERTZ |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000291658900009 |
| 公开日期 | 2012-08-07 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/4441]  |
| 专题 | 紫金山天文台_毫米波和亚毫米波技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, PMO, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Natl Univ Ireland, Dept Expt Phys, Maynooth, Kildare, Ireland 4.SRON, Netherlands Inst Space Res, NL-3584 CA Utrecht, Netherlands 5.MPIfR, D-53121 Bonn, Germany 6.Delft Univ Technol, Kavli Inst NanoSci, NL-2628 CJ Delft, Netherlands 7.MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA 8.Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA |
| 推荐引用方式 GB/T 7714 | Ren, Y.,Hovenier, J. N.,Higgins, R.,et al. High-resolution heterodyne spectroscopy using a tunable quantum cascade laser around 3.5 THz[J]. APPLIED PHYSICS LETTERS,2011,98(23):231109. |
| APA | Ren, Y..,Hovenier, J. N..,Higgins, R..,Gao, J. R..,Klapwijk, T. M..,...&Reno, J. L..(2011).High-resolution heterodyne spectroscopy using a tunable quantum cascade laser around 3.5 THz.APPLIED PHYSICS LETTERS,98(23),231109. |
| MLA | Ren, Y.,et al."High-resolution heterodyne spectroscopy using a tunable quantum cascade laser around 3.5 THz".APPLIED PHYSICS LETTERS 98.23(2011):231109. |
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来源：紫金山天文台
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