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Université de Lille
Laboratoire Laboratoire de Physique des Lasers, Atomes et Molécules | Laboratory of Physics of Lasers, Atoms and Molecules Laboratory of Physics of Lasers, Atoms and Molecules
UMR 8523
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  • Research Teams
    • Quantum systems
      • Research
        • I. Bose-Einsten condensate
        • II. Quantum field theory
        • III. Quantum information
        • IV. THz Communication
        • V. Outreach
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    • DYSCO
      • Research
        • I. Out of Equilibrium Systems
        • II. Nonlinear Dynamics and Quantum Optics
        • III. Dynamics of Accelerators
        • IV. Biophysics
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    • PCMT
      • Research
        • I. Methodologies to model gas/particle interface reactions and bulk properties
        • II. Unraveling Molecular Processes in the Interstellar Medium
        • III. Formation, composition and reactivity of aerosol particles and their implications for the Earth atmosphere
        • IV. Modelling of heavy elements and radionuclides physical and chemical properties in the context of the nuclear fuel cycle
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    • Photonics
      • Research
        • I. Active fibers
        • II. Advanced fiber modeling
        • III. Non-linear photonics in fibers
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    • MPI
      • Research
        • Rovibrational spectroscopy (SPECTRO)
        • Traces analyses (ANATRAC)
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    • Summaries of the thesis
      • ABOUHAIDAR Rawan: Toward a molecular level understanding of heterogeneous processes at atmospheric aerosol surfaces
      • ALDAIR MISAEL Wilken : Simulating resonant inelastic X-ray scattering across the whole periodic table
      • ALYEKSEYEVA Mariia : In-situ characterization of amino acids and their precursors using the LITE device (Lille Ice Terahertz Experiment).
      • ALOU ANGULO Gilberto Antonio: Theoretical study of the molecular dynamics of complex gas-surface systems using Artificial Intelligence methods
      • AYYAD Marouane
      • BANCEL Eve-Line : Peignes de fréquence dans les fibres optiques multi-cœurs ou multi-modes pour la spectroscopie et la métrologie de précision
      • BARRELLON-VERNAY Rafaël : Unveiling nucleation mechanism in aircraft engine exhaust and its link with fuel composition.
      • BAYDI Brahim
      • BON Mathilde : Caractérisation moléculaire de micro- et macro-fossiles par spectrométrie de masse à l’échelle cellulaire.
      • BRACQUART Colwyn: The secondary organic aerosols: Micro-solvation, hygroscopicity and reactivity of the precursors.
      • BSAIBES Maroun: Towards a better understanding of light scattering and mode coupling mechanisms in slightly multimode optical fibers.
      • BUNEL Thomas
      • CHEDID Alexandre : Photonique multimodale-Caractérisation dynamique du canal de transmission d'une fibre optique faiblement multimode
      • CHOUAIB Zahraa: Theoretical Investigation of the Surface Activity and Reactivity of Organosulfate Aerosols
      • DELANGLE Corentin : Oscillateur Mamyshev pour la production d'impulsions ultracourtes énergétiques à haut taux de répétition
      • DELPIERRE Pauline
      • DENIS Maxime : Simulation de systèmes quantiques désordonnés avec un condensat de Potassium : effets topologiques et interactions
      • DIOUM Bakhao
      • DUFOUR Martin
      • EL MOUSSAWI Fatima : Fibres optiques de spécialité pour endoscopes bio-médicales ultra-miniaturisés
      • EL SOKHEN Rabih
      • HAIDER Kawssar Mujtaba: Role of organic waste reactivity on the formation of secondary organic aerosols.
      • HANOUN Christelle
      • HASEEB Eden
      • HURBAIN Julien: Control of cell fate with oxidative stress.
      • INFUSO Maxime: Unraveling the atmospheric iodine chemistry using molecular simulations.
      • LAFARGUE Léa : Développement d’une nouvelle source fibrée d’impulsions courtes pour l’injection d’une chaîne laser de puissance
      • LE Maxime: New electronic structure methods for modelling single- and multi-photon excitations in chiral molecular systems
      • LEBEL Alexandre
      • LECHEVALIER Corentin
      • LERNER Alexandre : Inscription de réseaux de Bragg haute température au sein de structures métalliques réalisées par synthèse additive
      • MADANI Farid : Étude expérimentale des systèmes quantiques désordonnés en présence d’interactions avec un condensat de Bose-Einstein
      • MAILLARD Agathe : Spectroscopic characterization of stable and unstable atmospheric precursors as well as their micro-solvation in the gas phase.
      • MILADI Eya: Spectroscopic and computational studies of actinides complexation with inorganic ligands
      • MUCCI Alexandre
      • MUÑOZ Maëva: Synthesis and characterisation of actinide polynuclear complexes
      • MURR Georges : Machine Learning-assisted spatiotemporal chaos forecasting
      • NEGRINI Stefano : Gain induit par des filtres dans les cavité fibrées passives
      • OPOKU Richard Asamoah: Theoretical core spectroscopy of molecules interacting with ice surfaces.
      • OUARKOUB Cecilia
      • POEYDEBAT Etienne: Development of a Mamyshev oscillator.
      • REAL ELGUEDA Bastian Maximiliano
      • SAWADOGO Bewindin Alfred: Manipulation of MIMO RF beams at Terahertz frequencies for very high throughput point-to-point applications.
      • SEPTIER Dylan: Double clad hollow core fibers for nonlinear microendoscopy.
      • SHAABAN Tamara: Theoretical modelling of physical-chemical properties of protactinium complexes
      • SRIVASTAVA Shivang : Characterization and manipulation of quantum states of the light with high-dimensional encoding
      • TOMBOZA Wendy : Développement de capteurs de pression à fibres optiques hautes températures pour l’instrumentation de moteurs d’avions
      • VANDENBERGHE Alan: Experimental study of the coupling between circadian clock and metabolism. Application to the development of chronotherapies of metabolic disorders.
      • VANDERHAEGEN Guillaume : Cartographie de la récurrence de Fermi-Pasta-Ulam-Tsingou dans une fibre à dispersion oscillante
      • VUATELET Vincent : Localisation dynamique à N-corps d'un gaz de Tonks-Girardeau
      • YUAN Xiang: Molecular properties in the linear response regime and beyond.
      • ZAFAR Sadain : CO2 hydrates as an alternative solution to water desalination & greenhouse gas mitigation
      • ZGHARI Ismail : Silice dopée et fibre optique pour la dosimétrie en radiothérapie pulsée
  1. PhLAM
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  3. Research Teams
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  5. MPI
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  7. Research
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  9. Rovibrational spectroscopy (SPECTRO)
  10. >
  11. 2) Environmental Sciences
Research Teams MPI
  • Research
    • Rovibrational spectroscopy (SPECTRO)
    • Traces analyses (ANATRAC)
  • Members
  • Projects and contracts
  • Equipment
  • Collaborations
  • Publications and conferences

2) Environmental Sciences

The physical properties, chemical reactions, evolution, and characterisation of either particles or molecules involved in atmospheric processes are tackled from a physicochemical perspective using non commercial home-built instrumentation. The research activities of interest to the understanding of processes occurring in the gas–phase address the identification of micro-solvation sites with water, the structural changes induced by micro-hydration, the complexation and reactivity of troposphericrelevant gaseous species with sulfur compounds, the development of new instruments, and the refining of posttreatment (line profiles) or simulation of high-resolution molecular spectra. Examples of the group's research activities related to this theme are described below.

 

a. Gas-phase physico-chemical properties of volatile organic compounds.

The structural properties of volatile organic compounds (VOCs) are investigated. These studies are supported by the LabEx CaPPA and the CPER CLIMIBIO and ECRIN. Three objectives are considered:

  1. Identify the position of micro-solvation sites with water. We aim to show how water could interact with the oxidation products of volatile organic compounds, minority compounds of the atmosphere, in the gas phase, especially with monoterpenoids (alhedydes and bicyclic ketones comprising 10 carbon atoms). For example, mono-, di- and tri-hydrates were characterized for verbenone and camphor, using quantum chemical calculations and Fourier-transform microwave spectroscopy in a pulsed supersonic jet.
  2. Study the structural changes of the parent species associated to micro-hydration. For example, we have shown how a hydration process changes (case of fenchol), or does not change (case of myrtenol), the conformational landscape of the host molecule, at the level of a functional group, in terms of relative energy. We have emphasized the importance of hydrogen bonding in stabilizing the lowest energy species.
  3. The study of solvent species is extended from water to hydrogen sulphide (H2S), the latter being ubiquitous in the atmosphere. They are emitted by human activities (combustion processes), but natural sources provide the largest amounts of sulphur compounds. They play a crucial role in the formation of secondary organic aerosols (SOAs), by transforming organic volatile compounds (VOCs) mainly emitted by terrestrial vegetation into the condensed phase, in particular through weak interactions (hydrogen bond, London dispersion forces). Note that hydrogen bond involving an atom of sulphur is expected to be weaker than that involving an oxygen atom. We performed the first quantitative characterisation of the hydrogen bond of H2S with biogenic volatile organic compounds. Our work on fenchol and fenchone indicated that sulphur behaves differently from oxygen during the micro-solvation process.

 

 

 

 

b. Line profile of atmospherically relevant molecules.

The influence of molecular velocity on collision-induced transition frequency shifts is studied by analysing experiments using coherent transient regime techniques (optical precession) on the rotational transition at 86 GHz of HC15N. This effect, characterized by a temporal variation of the optical precession frequency, is responsible for an asymmetry of the absorption lines. It is perfectly explained within the framework of the hypergeometric model of velocity dependence of relaxation rates, which is impossible with the quadratic model used in the databases. In collaboration with the LPCA of ULCO (Dunkirk), and the laboratory of Spectroscopy and Molecular Dynamics of the Ecole Nationale Supérieure d'Ingénieurs de Tunis (Tunisia), the study of collisional broadenings of submillimeter transitions of H2S induced by H2S and N2 made it possible to highlight the velocity dependence of molecular collision rates. In collaboration with the UTINAM Institute in Besançon, and the V.E. Zuev Institute of Atmospheric Optics in Tomsk (Russia), a similar study has been performed on the collisional broadening of submillimeter transitions of CH3CN induced, among others, by N2, O2 or rare gases.

 

c. Reactive halogenated species

Halogenated compounds have a major impact on the chemical composition of the atmosphere, but most studies on halogenated species do not include iodine. Several key iodine-containing species, identified as being released into the atmosphere with a high probability, either naturally or anthropogenically, have been studied for the first time: the photolabile dihalomethane CH2BrI from the INOx family (x = 1-3). This family can be considered an important temporary reservoir for iodine and nitrogen oxides. These results, supported by LabEx CaPPA, were achieved through significant theoretical and experimental collaborations with D. Duflot (PCMT team) and H. Ozeki (Toho Univ., Japan).

1) Laboratory Astrophysics

3) Metrology of molecules of defense interest

4) Innovative Methodology and Instrumentation Development

Laboratoire de Physique des Lasers, Atomes et Molécules | Laboratory of Physics of Lasers, Atoms and Molecules
Laboratory of Physics of Lasers, Atoms and Molecules
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