High-resolution heterodyne spectroscopy using a tunable quantum cascade laser around 3.5 THz

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	High-resolution heterodyne spectroscopy using a tunable quantum cascade laser around 3.5 THz
	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
	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]
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
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
内容类型	期刊论文
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.