Title :

Ground-Based Remote Sensing of CO 2 in the Atmospheric Column Using a Portable Laser Heterodyne Radiometer with a Balanced Photodetector

Author(s) :

Wei, Tingting [Auteur]
Wang, Jingjing [Auteur]
Distributed Programming Laboratory [LPD]
Shen, Fengjiao [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Tan, Tu [Auteur]
Cao, Zhensong [Auteur]
Gao, Xiaoming [Auteur]
Jeseck, Pascal [Auteur]
Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
Te, Yao-Veng [Auteur]
Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres [LERMA]
Plus, Stéphane [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Dong, Lei [Auteur]
Chimie Organique 2-Glycochimie [CO2GLYCO]
Chen Weidong, 陈卫东 [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]

Conference title :

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)

City :

Munich

Country :

Allemagne

Start date of the conference :

2023-06-26

Book title :

2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)

Publisher :

IEEE

Publication date :

2023-09-04

English keyword(s) :

Gases
Atmospheric measurements
Atmospheric modeling
Measurement by laser beam
Radiometry
Laser modes
Chemical lasers

HAL domain(s) :

Physique [physics]

English abstract : [en]

Measurement of vertical concentration profiles of atmospheric trace gases is of great interest to understand the physics, chemistry, dynamics, and radiation budget of the atmosphere as well as to validate the results ...
Show more >Measurement of vertical concentration profiles of atmospheric trace gases is of great interest to understand the physics, chemistry, dynamics, and radiation budget of the atmosphere as well as to validate the results provided from chemical models and satellite observations. The laser heterodyne radiometer (LHR), as a passive remote sensing technique, was introduced and developed in 1970s to meet the needs of observing O 3 hole in the atmosphere [1]–[3]. Since then, due to the lack of a suitable tunable laser source being used as a local oscillator (LO) for heterodyne measurement, LHR applications stayed almost in silence. Over the last decade, there has been a revival of the LHR technique as a result of significant advances in lasers and photonics technology [4]. Compared to the currently used Fourier transform spectrometer (FTS) for ground-based measurement of trace gases in the atmospheric column, the LHR offers unique advantages including high spectral resolution (<10 −3 cm −1 , determined by the selected electronic filter bandwidths), high sensitivity (within a factor of ~ 2 of the quantum noise limit), high spatial resolution owing to very small coherent field of view (FoV), and cost-effective compact instrumental dimension.Show less >

Language :

Anglais

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL