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题名: Terahertz heterodyne spectrometer using a quantum cascade laser
作者: Ren, Y.1, 2, 3; Hovenier, J. N.1; Higgins, R.4; Gao, J. R.1, 5; Klapwijk, T. M.1; Shi, S. C.2; Bell, A.6; Klein, B.6; Williams, B. S.7; Kumar, S.7; Hu, Q.7; Reno, J. L.8
刊名: APPLIED PHYSICS LETTERS
出版日期: 2010-10-18
卷号: 97, 期号:16
DOI: 10.1063/1.3502479
文章类型: Article
英文摘要: A terahertz (THz) heterodyne spectrometer is demonstrated based on a quantum cascade laser (QCL) as a local oscillator (LO) and an NbN hot electron bolometer as a mixer, and it is used to measure high-resolution molecular spectral lines of methanol (CH(3)OH) between 2.913-2.918 THz. The spectral lines are taken from a gas cell containing methanol gas and using a single-mode QCL at 2.9156 THz as an LO, which is operated in the free running mode. By increasing the pressure of the gas, line broadening and saturation are observed. The measured spectra showed good agreement with a theoretical model. (C) 2010 American Institute of Physics. [doi:10.1063/1.3502479]
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Applied
研究领域[WOS]: Physics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000283502100005
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15953
Appears in Collections:毫米波和亚毫米波技术实验室_期刊论文

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作者单位: 1.Delft Univ Technol, Kavli Inst NanoSci, NL-2628 CJ Delft, Netherlands
2.Chinese Acad Sci, PMO, Nanjing 210008, Jiangsu, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
4.Natl Univ Ireland, Dept Expt Phys, Maynooth, Kildare, Ireland
5.SRON Netherlands Inst Space Res, NL-3584 CA Utrecht, Netherlands
6.MPIfR, D-53121 Bonn, Germany
7.MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
8.Sandia Natl Labs, Albuquerque, NM 87185 USA
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