F
Fengjiao Shen
Researcher at University of the Littoral Opal Coast
Publications - 17
Citations - 50
Fengjiao Shen is an academic researcher from University of the Littoral Opal Coast. The author has contributed to research in topics: Radiometer & Laser. The author has an hindex of 2, co-authored 6 publications receiving 9 citations.
Papers
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Journal ArticleDOI
Real-time monitoring of N2O production in a catalytic reaction process using mid-infrared quantum cascade laser
Fengjiao Shen,Joudia Akil,Gaoxuan Wang,Christophe Poupin,Renaud Cousin,Stéphane Siffert,Eric Fertein,Tong-Nguyen Ba,Weidong Chen +8 more
TL;DR: In this paper, a room-temperature continuous-wave (CW) external cavity quantum cascade laser (EC-QCL)-based optical sensor was developed for real-time monitoring N2O production during the whole catalytic reaction process.
Journal ArticleDOI
Transportable mid-infrared laser heterodyne radiometer operating in the shot-noise dominated regime.
Fengjiao Shen,Gaoxuan Wang,Jingjing Wang,Tu Tan,Guishi Wang,Pascal Jeseck,Yao-Veng Te,Xiaoming Gao,Weidong Chen +8 more
TL;DR: In this article, a transportable laser heterodyne radiometer (LHR) based on an external cavity quantum cascade laser, operating in the mid-infrared (mid-IR) around 8 µm, was developed for ground-based remote sensing of multiple greenhouse gases.
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Impact of Lock-In Time Constant on Remote Monitoring of Trace Gas in the Atmospheric Column Using Laser Heterodyne Radiometer (LHR)
TL;DR: In this paper , the impact of LIA time constant on spectral line shape is investigated for LHR operating in continuous laser tuning mode, based on analysis of laboratory heterodyne spectra, in terms of signal-to-noise ratio (SNR), line width broadening, absorption depth and line shift.
Journal ArticleDOI
MEMS Modulator-Based Mid-Infrared Laser Heterodyne Radiometer for Atmospheric Remote Sensing
Zhengyue Xue,Fengjiao Shen,Jun Li,Xiaohai Liu,Guishi Wang,Kun Liu,Xiaoming Gao,Weidong Chen,Tu Tan +8 more
TL;DR: In this paper , the performance of a mid-infrared laser heterodyne radiometer (MIR-LHR) based on a microelectro-mechanical system (MEMS) mirror is demonstrated in ground-based solar occultation mode.
Journal ArticleDOI
Laser absorption spectroscopy applied to monitoring of short-lived climate pollutants (SLCPs)
Gaoxuan Wang,Fengjiao Shen,Hongming Yi,Patrice Hubert,Alexandre Deguine,Denis Petitprez,Rabih Maamary,Patrick Augustin,Marc Fourmentin,Eric Fertein,Markus W. Sigrist,Tong-Nguyen Ba,Weidong Chen +12 more
TL;DR: In this paper, the authors present optical sensing of these two climate-change related atmospheric species to illustrate how "classical" spectroscopy can help to address today's challenging issues: (1) Photoacoustic measurements of BC optical absorption coefficient in order to determine its radiative-forcing related optical parameters (such as mass absorption coefficient, absorption Angstrom coefficient) with higher precision (∼7.4% compared to 12-30% for filter-based methods routinely used nowadays).