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Dive into the research topics where Jean-Philippe Besson is active.

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Featured researches published by Jean-Philippe Besson.


Second European Workshop on Optical Fibre Sensors | 2004

Fibre-coupled photoacoustic sensor for sub-ppm methane monitoring

Stéphane Schilt; Jean-Philippe Besson; Luc Thévenaz

Sensitive photoacoustic detection of methane with a fiber-coupled 1.65 μm laser is reported. A sensitivity of 0.18 parts-per-million (signal-to-noise ratio = 3) is achieved using a properly designed photoacoustic cell operating on its first longitudinal mode.


Optical Fiber Sensors (2006), paper WB8 | 2006

Optical Sensor for the Detection of OH ¡ Contamination During Optical Fibre Manufacturing

Jean-Philippe Besson; Stéphane Schilt; Florian Sauser; Etienne Rochat; Philippe Hamel; Frédéric Sandoz; Marc Niklès; Luc Thévenaz

Sub-ppm (HCl) and (H2O) monitoring using photoacoustic spectroscopy is reported in optical fibre manufacturing for the production of low-water-peak fibres. Contamination sources of the carrier gas used for fibre preforms manufacturing were identified and discussed.


Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2004

Multi-gas sensing based on photoacoustic spectroscopy using tunable laser diodes

Jean-Philippe Besson; Stéphane Schilt; Luc Thévenaz


Applied Physics B | 2006

Ammonia trace measurements at ppb level based on near-IR photoacoustic spectroscopy

Jean-Philippe Besson; Stéphane Schilt; Etienne Rochat; Luc Thévenaz


Applied Physics B | 2006

Near-infrared laser photoacoustic detection of methane: The impact of molecular relaxation

Stéphane Schilt; Jean-Philippe Besson; Luc Thévenaz


Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2006

Sub-ppm multi-gas photoacoustic sensor.

Jean-Philippe Besson; Stéphane Schilt; Luc Thévenaz


Applied Physics B | 2008

Molecular relaxation effects in hydrogen chloride photoacoustic detection

Jean-Philippe Besson; Stéphane Schilt; Luc Thévenaz


Applied Physics B | 2006

Multi-hydrogenated compounds monitoring in optical fibre manufacturing process by photoacoustic spectroscopy

Jean-Philippe Besson; Stéphane Schilt; Florian Sauser; Etienne Rochat; Philippe Hamel; F. Sandoz; Marc Niklès; Luc Thévenaz


4. Konferenz über Optische Analysenmesstechnik in Industrie und Umwelt (OPTAM’04) | 2004

Individually ventilated cages microclimate monitoring using photoacoustic spectroscopy

Jean-Philippe Besson; Marcel Gyger; Stéphane Schilt; Luc Thévenaz


4. Konferenz über Optische Analysenmesstechnik in Industrie und Umwelt (OPTAM’04) | 2004

Sub-ppm multi gas sensing based on photoacoustic spectroscopy using DFB laser diodes

Jean-Philippe Besson; Stéphane Schilt; Luc Thévenaz

Collaboration


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Luc Thévenaz

École Polytechnique Fédérale de Lausanne

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Stéphane Schilt

École Polytechnique Fédérale de Lausanne

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Etienne Rochat

École Normale Supérieure

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Marc Niklès

École Polytechnique Fédérale de Lausanne

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Florian Sauser

École Normale Supérieure

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Philippe Robert

École Polytechnique Fédérale de Lausanne

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S. Schilt

University of Neuchâtel

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