Výsledky vyhledávání

PCF-Based Cavity Enhanced Spectroscopic Sensors for Simultaneous Multicomponent Trace Gas Analysis

Autor: Kamil Stelmaszczyk, Walter M. Nakaema, Philipp Rohwetter, Zuoqiang Hao, Ludger Wöste

Publikováno v: Sensors (Basel, Switzerland)
Sensors, Vol 11, Iss 2, Pp 1620-1640 (2011)

A multiwavelength, multicomponent CRDS gas sensor operating on the basis of a compact photonic crystal fibre supercontinuum light source has been constructed. It features a simple design encompassing one radiation source, one cavity and one detection

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::927a46d311ca2cce2bf2c8980181970b
https://doi.org/10.3390/s110201620

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A Compact Tunable Diode Laser Absorption Spectrometer to Monitor CO2 at 2.7 µm Wavelength in Hypersonic Flows

Autor: Jacques Soutade, Jean-Luc Vérant, Sebastien Paris, A.K. Mohamed, Raphael Vallon, Jason Meyers

Publikováno v: Sensors (Basel, Switzerland)
Sensors, Vol 10, Iss 6, Pp 6081-6091 (2010)
Sensors; Volume 10; Issue 6; Pages: 6081-6091

Since the beginning of the Mars planet exploration, the characterization of carbon dioxide hypersonic flows to simulate a spaceship’s Mars atmosphere entry conditions has been an important issue. We have developed a Tunable Diode Laser Absorption S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce6c386c3c95e84162d746cee63e2884
https://doi.org/10.3390/s100606081

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Mid-infrared laser phase-locking to a remote near-infrared frequency reference for high precision molecular spectroscopy

Autor: F. Auguste, Daniele Nicolodi, Michel Abgrall, Giorgio Santarelli, C. Chardonnet, Wei Zhang, B. Argence, Bruno Chanteau, Benoît Darquié, Olivier Lopez, Anne Amy-Klein, Y. Le Coq

Publikováno v: New Journal of Physics
New Journal of Physics, Institute of Physics: Open Access Journals, 2013, 15 (7), pp.073003. ⟨10.1088/1367-2630/15/7/073003⟩
New Journal of Physics, 2013, 15 (7), pp.073003. ⟨10.1088/1367-2630/15/7/073003⟩

International audience; We present a new method for accurate mid-infrared frequency measurements and stabilization to a near-infrared ultra-stable frequency reference, transmitted with a long-distance fibre link and continuously monitored against sta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91864a13605907fe2f11010208ceaf60
http://hdl.handle.net/20.500.12278/121665

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A revised uncertainty budget for measuring the Boltzmann constant using the Doppler Broadening Technique on ammonia

Autor: Christophe Daussy, Papa Lat Tabara Sow, Christian Chardonnet, S. Mejri, Meriam Triki, Sean Tokunaga, S. Briaudeau, Benoît Darquié, Cyril Lemarchand

Publikováno v: Metrologia
Metrologia, 2013, 50 (6), pp.623-630. ⟨10.1088/0026-1394/50/6/623⟩
Metrologia, IOP Publishing, 2013, 50 (6), pp.623-630. ⟨10.1088/0026-1394/50/6/623⟩

International audience; We report on our on-going effort to measure the Boltzmann constant, kB, using the Doppler Broadening Technique. The main systematic effects affecting the measurement are discussed. A revised error budget is presented in which

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdd452b1590c3a6cd9f5bfd3fcc47fc1
https://hal.science/hal-00862839/document

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Progress towards an accurate determination of the Boltzmann constant by Doppler spectroscopy

Autor: Meriam Triki, Christian J. Bordé, Christian Chardonnet, Benoît Darquié, Cyril Lemarchand, Christophe Daussy

Publikováno v: New Journal of Physics
New Journal of Physics, Institute of Physics: Open Access Journals, 2011, 13 (july 2011), pp.073028. ⟨10.1088/1367-2630/13/7/073028⟩

In this paper, we present significant progress performed on an experiment dedicated to the determination of the Boltzmann constant, k, by accurately measuring the Doppler absorption profile of a line in a gas of ammonia at thermal equilibrium. This o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f47f5b53cc040a5d69738e4224cc709
https://hal.archives-ouvertes.fr/hal-00548188v2/file/paper_dA_pot_HAL_et_ArXiv.pdf

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Spectroscopy of electronic states in InAs quantum dots grown on In(x)Al(1-x)As/InP(001)

Autor: Fossard, F., Helman, A., Fishman, G., H Julien, F., Brault, J., Gendry, M., Peronne, Emmanuel, Alexandrou, Antigoni, E Schacham, S., Bahir, G., Finkman, E.

Publikováno v: Physical Review Letters
Physical Review Letters, American Physical Society, 2004, 69, pp.155333. ⟨10.1103/PhysRevB.69.155333⟩
Physical Review Letters, 2004, 69, pp.155333. ⟨10.1103/PhysRevB.69.155333⟩

We have investigated optical properties of high-density InAs self-assembled quantum dots (QDs) in an InxAl1-xAs matrix, lattice matched to an InP (001) substrate. The weak lattice mismatch (~3%) results in a 90% coverage of the InxAl1-xAs surface wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::05bae4a267d9d4d7189b4bc42f9cf76f
https://hal.archives-ouvertes.fr/hal-00018243

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Akademický článek

PCF-based cavity enhanced spectroscopic sensors for simultaneous multicomponent trace gas analysis.

Autor: Nakaema WM; Institute of Experimental Physics, Free University of Berlin, Arnimallee 14, 14195 Berlin, Germany. walternak@usp.br, Hao ZQ, Rohwetter P, Wöste L, Stelmaszczyk K

Publikováno v: Sensors (Basel, Switzerland) [Sensors (Basel)] 2011; Vol. 11 (2), pp. 1620-40. Date of Electronic Publication: 2011 Jan 27.

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Akademický článek

A compact tunable diode laser absorption spectrometer to monitor CO2 at 2.7 μm wavelength in hypersonic flows.

Autor: Vallon R; The French Aerospace Lab, ONERA, BP72-29 avenue de la Division Leclerc, FR-92322 Chatillon cedex, France. rvallon@onera.fr, Soutadé J, Vérant JL, Meyers J, Paris S, Mohamed A

Publikováno v: Sensors (Basel, Switzerland) [Sensors (Basel)] 2010; Vol. 10 (6), pp. 6081-91. Date of Electronic Publication: 2010 Jun 17.

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