D. Romanini
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View article: A new model for the treatment of optical saturation for measuring Ne*(<sup>3</sup>P<sub>0</sub>) metastable atoms density down to 10<sup>10</sup> m<sup>−3</sup> by cavity ring-down spectroscopy
A new model for the treatment of optical saturation for measuring Ne*(<sup>3</sup>P<sub>0</sub>) metastable atoms density down to 10<sup>10</sup> m<sup>−3</sup> by cavity ring-down spectroscopy Open
Cavity ring-down spectroscopy with a continuous wave diode laser at 653 nm is used for measuring the density of Ne*( 3 P 0 ) metastable atoms in low pressure Ne–Ar glow discharges. Non-exponential ring-down (RD) signals are observed due to…
View article: A multiplexing system for quantifying oxygen fractionation factors in closed chambers
A multiplexing system for quantifying oxygen fractionation factors in closed chambers Open
The study of isotopic ratios of atmospheric oxygen in fossilized air trapped in ice core bubbles provides information on variations in the hydrological cycle at low latitudes and productivity in the past. However, to refine these interpret…
View article: OF–CEAS laser spectroscopy to measure water isotopes in dry environments: example of application in Antarctica
OF–CEAS laser spectroscopy to measure water isotopes in dry environments: example of application in Antarctica Open
Water vapour isotopes are important tools to better understand processes governing the atmospheric hydrological cycle. Their measurement in polar regions is crucial to improve the interpretation of water isotopic records in ice cores. In s…
View article: High-precision oxygen isotope ( <i>δ</i> <sup>18</sup> O) measurements of atmospheric dioxygen using optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS)
High-precision oxygen isotope ( <i>δ</i> <sup>18</sup> O) measurements of atmospheric dioxygen using optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) Open
Atmospheric dioxygen (O2) concentration and isotopic composition are closely linked to the carbon cycle through anthropic carbon dioxide (CO2) emissions and biological processes such as photosynthesis and respiration. The measurement of th…
View article: OF-CEAS laser spectroscopy to measure water isotopes in dry environments: example of application in Antarctica
OF-CEAS laser spectroscopy to measure water isotopes in dry environments: example of application in Antarctica Open
Water vapour isotopes are important tools to better understand processes governing the atmospheric hydrological cycle. Their measurement in polar regions is crucial to improve the interpretation of water isotopic records in ice cores. In s…
View article: A multiplexing system for quantifying oxygen fractionation factors in closed chambers
A multiplexing system for quantifying oxygen fractionation factors in closed chambers Open
The study of isotopic ratios of atmospheric oxygen in fossilized air trapped in ice core bubbles provides information on variations in the hydrological cycle at low latitudes and productivity in the past. However, to refine these interpret…
View article: Comment on amt-2024-14
Comment on amt-2024-14 Open
Abstract. Atmospheric dioxygen concentration and isotopic composition are closely linked to the carbon cycle through anthropic CO2 emissions and biological processes such as photosynthesis and respiration. Measu…
View article: Optical cavity spectroscopy using heterodyne detection with optical feedback laser frequency locking
Optical cavity spectroscopy using heterodyne detection with optical feedback laser frequency locking Open
We demonstrate an accurate high sensitivity method for cavity spectroscopy. We measure the frequency intervals of transverse electromagnetic modes relative to a fundamental mode in a high finesse optical resonator, and attribute their mode…
View article: High precision δ <sup>18</sup> O measurements of atmospheric dioxygen using optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS)
High precision δ <sup>18</sup> O measurements of atmospheric dioxygen using optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) Open
Atmospheric dioxygen concentration and isotopic composition are closely linked to the carbon cycle through anthropic CO2 emissions and biological processes such as photosynthesis and respiration. Measurement of isotopic ratio of atmospheri…
View article: Comment on amt-2023-83
Comment on amt-2023-83 Open
Abstract. Despite its crucial role in the Earth's radiative balance, upper air water vapor (H2O) is still lacking accurate, in-situ, and continuous monitoring. Especially in the upper troposphere-lower stratosph…
View article: SPECIES: a balloon-borne and airborne instrument coupling infrared lasers with Optical Feedback Cavity Enhanced Absorption Spectroscopy technique for atmospheric in-situ trace-gas measurements
SPECIES: a balloon-borne and airborne instrument coupling infrared lasers with Optical Feedback Cavity Enhanced Absorption Spectroscopy technique for atmospheric in-situ trace-gas measurements Open
The balloon-borne and airborne instrument SPECIES (SPECtromètre Infrarouge à lasErs in Situ) recently built in our laboratory will be described. This is a mid-infrared absorption spectrometer, including four channels by coupling …
View article: Continuous Endogenous Exhaled CO Monitoring by Laser Spectrometer in Human EVLP Before Lung Transplantation
Continuous Endogenous Exhaled CO Monitoring by Laser Spectrometer in Human EVLP Before Lung Transplantation Open
Endogenous production of carbon monoxide (CO) is affected by inflammatory phenomena and ischemia-reperfusion injury. Precise measurement of exhaled endogenous CO (eCO) is possible thanks to a laser spectrometer (ProCeas® from AP2E company)…
View article: Comb coherence-transfer and cavity ring-down saturation spectroscopy around 1.65 μm: kHz-accurate frequencies of transitions in the 2ν<sub>3</sub> band of <sup>12</sup>CH<sub>4</sub>
Comb coherence-transfer and cavity ring-down saturation spectroscopy around 1.65 μm: kHz-accurate frequencies of transitions in the 2ν<sub>3</sub> band of <sup>12</sup>CH<sub>4</sub> Open
Comb Coherence Transfer uses feed-forward frequency correction to copy the optical phase of a frequency comb to a free-running diode laser. Coupled with cavity ring-down saturation spectroscopy it delivers transition frequencies with high …
View article: Privacy and uniqueness of neighborhoods in social networks
Privacy and uniqueness of neighborhoods in social networks Open
View article: Practical Defences Against Model Inversion Attacks for Split Neural Networks
Practical Defences Against Model Inversion Attacks for Split Neural Networks Open
We describe a threat model under which a split network-based federated learning system is susceptible to a model inversion attack by a malicious computational server. We demonstrate that the attack can be successfully performed with limite…
View article: PyVertical: A Vertical Federated Learning Framework for Multi-headed SplitNN
PyVertical: A Vertical Federated Learning Framework for Multi-headed SplitNN Open
We introduce PyVertical, a framework supporting vertical federated learning using split neural networks. The proposed framework allows a data scientist to train neural networks on data features vertically partitioned across multiple owners…
View article: Triple isotopic composition of oxygen in the atmospheric dioxygen to reconstruct the dynamic of global biosphere productivity in the past from measurements in biological chambers
Triple isotopic composition of oxygen in the atmospheric dioxygen to reconstruct the dynamic of global biosphere productivity in the past from measurements in biological chambers Open
<p>High precision measurements of triple isotopic composition of oxygen in the air trapped in ice cores is a useful tool to infer the global gross biosphere productivity in the past. The isotopic composition of oxygen is influenced b…
View article: Implementation of an incoherent broadband cavity-enhanced absorption spectroscopy technique in an atmospheric simulation chamber for in situ NO <sub>3</sub> monitoring: characterization and validation for kinetic studies
Implementation of an incoherent broadband cavity-enhanced absorption spectroscopy technique in an atmospheric simulation chamber for in situ NO <sub>3</sub> monitoring: characterization and validation for kinetic studies Open
An incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) technique has been developed for the in situ monitoring of NO3 radicals at the parts per trillion level in the CSA simulation chamber (at LISA). The technique couple…
View article: Implementation of an IBBCEAS technique in an atmospheric simulation chamber for <i>in situ</i> NO <sub>3</sub> monitoring: characterization and validation for kinetic studies
Implementation of an IBBCEAS technique in an atmospheric simulation chamber for <i>in situ</i> NO <sub>3</sub> monitoring: characterization and validation for kinetic studies Open
An incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) technique has been developed for in situ monitoring of NO3 radicals at the ppt level in the CSA simulation chamber (at LISA). The technique couples an incoherent bro…
View article: Gouy phase shift measurement in a high-finesse cavity by optical feedback frequency locking
Gouy phase shift measurement in a high-finesse cavity by optical feedback frequency locking Open
International audience
View article: High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer
High inhaled oxygen concentration quadruples exhaled CO in healthy volunteers monitored by a highly sensitive laser spectrometer Open
View article: Simultaneous detection of C <sub>2</sub> H <sub>6</sub> , CH <sub>4</sub> , and <i>δ</i> <sup>13</sup> C-CH <sub>4</sub> using optical feedback cavity-enhanced absorption spectroscopy in the mid-infrared region: towards application for dissolved gas measurements
Simultaneous detection of C <sub>2</sub> H <sub>6</sub> , CH <sub>4</sub> , and <i>δ</i> <sup>13</sup> C-CH <sub>4</sub> using optical feedback cavity-enhanced absorption spectroscopy in the mid-infrared region: towards application for dissolved gas measurements Open
Simultaneous measurement of C2H6 and CH4 concentrations, and of the δ13C-CH4 isotope ratio is demonstrated using a cavity-enhanced absorption spectroscopy technique in the mid-IR region. The spectrometer is compact and has been designed fo…
View article: Collision-induced absorption and electric quadrupole transitions of N2 by OF-CEAS near 4.0 µm and CRDS near 2.1 µm
Collision-induced absorption and electric quadrupole transitions of N2 by OF-CEAS near 4.0 µm and CRDS near 2.1 µm Open
View article: Simultaneous Detection of C <sub>2</sub> H <sub>6</sub> , CH <sub>4</sub> and δ <sup>13</sup> C-CH <sub>4</sub> Using Optical Feedback Cavity Enhanced Absorption Spectroscopy in the Mid-Infrared Region: Towards Application for Dissolved Gas Measurements
Simultaneous Detection of C <sub>2</sub> H <sub>6</sub> , CH <sub>4</sub> and δ <sup>13</sup> C-CH <sub>4</sub> Using Optical Feedback Cavity Enhanced Absorption Spectroscopy in the Mid-Infrared Region: Towards Application for Dissolved Gas Measurements Open
Simultaneous measurement of C2H6 and CH4 concentrations, and of the δ13C-CH4 isotope ratio is demonstrated using a cavity enhanced absorption spectroscopy technique in the mid-IR region. The spectrometer is compact and has been designed fo…
View article: Sub-Ocean: Subsea Dissolved Methane Measurements Using an Embedded Laser Spectrometer Technology
Sub-Ocean: Subsea Dissolved Methane Measurements Using an Embedded Laser Spectrometer Technology Open
We present a novel instrument, the Sub-Ocean probe, allowing in situ and continuous measurements of dissolved methane in seawater. It relies on an optical feedback cavity enhanced absorption technique designed for trace gas measurements an…
View article: Laser spectroscopy for breath analysis: towards clinical implementation
Laser spectroscopy for breath analysis: towards clinical implementation Open
View article: Nitric Oxide Analysis Down to ppt Levels by Optical-Feedback Cavity-Enhanced Absorption Spectroscopy
Nitric Oxide Analysis Down to ppt Levels by Optical-Feedback Cavity-Enhanced Absorption Spectroscopy Open
Monitoring nitric oxide at the trace level is required in a large range of applications. We report on a trace gas analyzer optimized for nitric oxide measurements by Optical Feedback Cavity Enhanced Absorption Spectroscopy with an interban…
View article: ACCURATE LABORATORY DETERMINATION OF THE MID AND SHORT WAVE INFRARED WATER VAPOR SELF-CONTINUUM. NEW MEASUREMENTS AND TEST OF THE MT_CKD MODEL
ACCURATE LABORATORY DETERMINATION OF THE MID AND SHORT WAVE INFRARED WATER VAPOR SELF-CONTINUUM. NEW MEASUREMENTS AND TEST OF THE MT_CKD MODEL Open
2-Methoxyethylamine (2MEA) exists in trans and gauche conformations, each with at least one intramolecular hydrogen bond from the amine to the methoxy oxygen. Rotational spectra of 2MEA, recorded by Caminati et al., exhibit splittings aris…
View article: The water vapour self-continuum absorption in the infrared atmospheric windows: new laser measurements near 3.3 and 2.0 µm
The water vapour self-continuum absorption in the infrared atmospheric windows: new laser measurements near 3.3 and 2.0 µm Open
The amplitude, the temperature dependence, and the physical origin of the water vapour absorption continuum are a long-standing issue in molecular spectroscopy with direct impact in atmospheric and planetary sciences. In recent years, we h…
View article: The water vapor self-continuum absorption in the infrared atmospheric windows: New laser measurements near 3.3 μm and 2.0 μm
The water vapor self-continuum absorption in the infrared atmospheric windows: New laser measurements near 3.3 μm and 2.0 μm Open
The amplitude, the temperature dependence and the physical origin of the water vapor absorption continuum are a long standing issue in molecular spectroscopy with direct impact in atmospheric and planetary sciences. In the recent years, we…