Julien Cousin
University of the Littoral Opal Coast
10 Papers
63 Citations
Julien Cousin is an academic researcher from University of the Littoral Opal Coast. The author has contributed to research in topics: Laser & Absorption spectroscopy. The author has an hindex of 4, co-authored 10 publications.
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Papers
Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared
Julien Cousin,Pascal Masselin,Weidong Chen,D. Boucher,Samir Kassi,Daniele Romanini,Pascal Szriftgiser +6 more
TL;DR: In this article, a continuous-wave tunable fiber laser-based spectrometer for applied spectroscopy is reported, which is used for high-resolution absorption spectra of acetylene (C2H2) associated with a 100m long multipass cell.
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Telecom-grade fiber laser-based difference-frequency generation and ppb-level detection of benzene vapor in air around 3 μm
TL;DR: In this paper, the authors developed a field deployable compact laser instrument tunable over ∼232 cm−1 from 3.16 to 3.41 μm for chemical species monitoring at the ppb-level.
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Optical parametric sources for the infrared/Sources optiques paramétriques pour l'infrarouge Continuous-wave mid-infrared laser sources based on difference frequency generation
Weidong Chen,Julien Cousin,Emmanuelle Poullet,J. Burie,D. Boucher,Xiaoming Gao,Markus W. Sigrist,Frank K. Tittel +7 more
- 01 Jan 2007
TL;DR: Chen et al. as mentioned in this paper report on recent developments of widely tunable, continuous-wave (CW) laser sources based on difference-frequency generation (DFG) in nonlinear optical materials.
2
Tuneable erbium-doped fibre laser-based spectrometer for trace gas detection in the near infrared
TL;DR: In this article, the authors proposed a gas analysis with tuneable diode laser spectrometry in the near infrared (NIR) wavelength range around 1550 nm, which is attractive because of the commercial availability of photonic components such as DFB and ECL diode lasers, rare earth doped fibre laser or photodiodes originally designed for the use in fibre-optic communication systems.
1
Laser Difference-Frequency Generation in the Mid-Infrared and Applications to High-Resolution Molecular Spectroscopy and Trace Gas Detection
Weidong Chen,Julien Cousin,Emmanuelle Poullet,D. Boucher,Xiaoming Gao,Markus W. Sigrist,Frank K. Tittel +6 more
- 01 Sep 2006
TL;DR: In this article, the authors report on the development of a widely tunable continuous-wave (CW) laser spectrometer based on difference-frequency generation (DFG) in a nonlinear optical crystal, which operates in the mid-infrared spectral region of 3-20?m with a Doppler linewidth limited spectral resolution.
1