Transportable mid-infrared laser heterodyne radiometer operating in the shot-noise dominated regime

	Transportable mid-infrared laser heterodyne radiometer operating in the shot-noise dominated regime
	Shen, Fengjiao 1,2; Wang, Gaoxuan 2; Wang, Jingjing 2,4; Tan, Tu 4; Wang, Guishi 4; Jeseck, Pascal 3; Te, Yao-Veng 3; Gao, Xiaoming 4; Chen, Weidong 2
刊名	OPTICS LETTERS
	2021-07-01
卷号	46
ISSN号	0146-9592
通讯作者	Chen, Weidong(chen@univ-littoral.fr)
英文摘要	A transportable laser heterodyne radiometer (LHR) based on an external cavity quantum cascade laser, operating in the mid-infrared (mid-IR) around 8 mu m, was developed for ground-based remote sensing of multiple greenhouse gases. A newly available novel flexible mid-IR polycrystalline fiber was first exploited to couple solar radiation, real-time captured using a portable sun-tracker, to the LHR receiver. Compared to free space coupling of sunlight, the technique usually used nowadays in the mid-IR, such fiber coupling configuration makes the LHR system readily more stable, simpler, and robust. Operation of the LHR with quasi-shot-noise limited performance was analyzed and experimentally achieved by optimizing local oscillator power. To the best of our knowledge, no such performance approaching the fundamental limit has been reported for a transportable LHR operating at a long mid-IR wavelength around 8 mu m. CH4 and N2O were simultaneously measured in the atmospheric column using the developed mid-IR LHR. The experimental LHR spectrum of CH4 and N2O was compared and is in good agreement with a referenced Fourier-transform infrared spectrum from the Total Carbon Column Observing Network observation site and with a simulation spectrum from atmospheric transmission modeling. (C) 2021 Optical Society of America
资助项目	Region Hauts-de-France (CLIMIBIO) ; Agence Nationale de la Recherche[ANR-10-LABX005]
WOS关键词	ATMOSPHERIC COLUMN ; MU-M ; SPECTROSCOPY ; CO2 ; LHR ; CH4
WOS研究方向	Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000668963500044
资助机构	Region Hauts-de-France (CLIMIBIO) ; Agence Nationale de la Recherche
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123448]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Weidong
作者单位	1.Hefei Univ, Sch Adv Mfg Engn, Hefei, Peoples R China 2.Univ Littoral Cote dOpale, Lab Physicochim Atmosphere, Dunkerque, France 3.Univ Paris 06, Lab Etud Rayonnement & Matiere Astrophys & Atmosp, Paris, France 4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei, Peoples R China
推荐引用方式 GB/T 7714	Shen, Fengjiao,Wang, Gaoxuan,Wang, Jingjing,et al. Transportable mid-infrared laser heterodyne radiometer operating in the shot-noise dominated regime[J]. OPTICS LETTERS,2021,46.
APA	Shen, Fengjiao.,Wang, Gaoxuan.,Wang, Jingjing.,Tan, Tu.,Wang, Guishi.,...&Chen, Weidong.(2021).Transportable mid-infrared laser heterodyne radiometer operating in the shot-noise dominated regime.OPTICS LETTERS,46.
MLA	Shen, Fengjiao,et al."Transportable mid-infrared laser heterodyne radiometer operating in the shot-noise dominated regime".OPTICS LETTERS 46(2021).