Consult our proposals for M2 internship subjects, thesis subjects, Post-doc offers or long-term positions…
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Measuring decoherence and entanglement in attosecond photoemission
Stage M2CEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceJanuary 2 20255 monthDomain, Specialties : PHYSICS Keywords: ultrafast optics, atomic and molecular physics, quantum optics Research Unit : LIDYL/ATTO The aim of the internship is to generate attosecond pulses using a new high-power Ytterbium laser and to use them to investigate the ultrafast photoemission dynamics of gases, in particular, to study in real time the decoherence resulting…
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Fluorescence lifetime measurements of nano-objects to detect alpha radiation in water
Stage M2FranceMarch 3 20256 monthDomain, Specialties : Physical chemistry Research Unit : LIDYL / DICO Using water-soluble fluorescent molecules or nano-objects is promising for detecting sources of alpha radiation in water remotely. The internship will make it possible to compare different systems by measuring fluorescence lifetimes. Objective of the study and challenges: the localization and rapid identification of the…
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Study of attosecond dynamics in the liquid phase thanks to developments in ytterbium laser technologies
Stage M2CEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceMarch 3 20255 monthDomain, Specialties : Laser Keywords: Non linear optics, Physical chemistry, Ultrafast lasers Research Unit : LIDYL / ATTO Electronic motion in molecules is now accessible thanks to attosecond (10-18 s) spectroscopic tools. The characterization of these pulses of light and their generation were the focus of the 2023 Nobel Prize in Physics, and have since…
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Frequency doubling to high-power UV in BBO
Stage M2CEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceMarch 10 20255 monthDomain, Specialties: OPTIQUE Keywords: Physique des lasers, optique non-linéaire Research Unit: LIDYL/SLIC The BBO nonlinear crystal has excellent linear and quadratic nonlinear optical properties for ultraviolet frequency conversion. However, the average power rise is currently limited by cubic non-linear effects such as two-photon absorption and the optical Kerr effect. We propose to experimentally revisit these…
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High-power UV laser frequency doubling in BBO
Stage M2CEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceMarch 10 20255 monthDomain, specialty: OPTIQUE Keywords: Physique des lasers, optique non-linéaire Unité d’accueil : LIDYL The BBO nonlinear crystal has excellent linear and quadratic nonlinear optical properties for ultraviolet frequency conversion. However, the average power rise is currently limited by cubic non-linear effects such as two-photon absorption and the optical Kerr effect. We propose to experimentally revisit…
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Research engineer on UHI100 laser experimental platform (permanent position) – Orme des merisiers h/f
CDDSeptember 10 202412 monthThe mission of CEA’s Fundamental Research Division, based at all the CEA’s civilian centers, is to carry out research in line with the CEA’s missions in the fields of physics, chemistry and life sciences, areas in which its excellence is recognized worldwide. The Laboratory Interactions, Dynamics and Lasers (LIDYL) conducts fundamental research activities related to…
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Postdoc position opened at CEA-Saclay (Paris, France) in the field of EUV metrology
Post-DoctoratEssonne (91)January 17 202436 monthThe use of very short wavelength light is developing rapidly in a wide variety of fields adiotherapy, lithography, academic research, attophysics, etc.). This type of radiation imposes severe constraints on the quality of the optical elements used. However, the current techniques of control offer limited resolutions as they are based on the use of visible…
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Internship: Proof of concept for in operando H2O2 determination by flash photolysis
Stage M2Essonne (91)June 30 20255 monthThe internship will involve adapting the H2O2 flash photolysis process for in operando measurement under ionizing radiation. For the proof of concept, it will be necessary to determine the best chemical system and protocol for analyzing the content of H2O2 formed during the radiolysis of water with heavy ions. The internship will make it possible…
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Internship: Laser developments for attosecond physics in semiconductor crystals.
StageEssonne (91)May 29 20244 monthThe objective of the internship is to modify and optimize the properties of a femtosecond laser in order to extend the laboratory’s experimental capabilities on the study of attosecond dynamics (1 attosecond = 10^-18 second) during laser-condensed matter interaction, and in particular the fundamental mechanisms of high-order harmonic generation in semiconductor crystals. The objective of…
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PhD offer: Attosecond electron and spin dynamics in 2D and 3D magnetic materials (English)
CDDEssonne (91)October 1 202436 monthAttosecond science is concerned with the dynamics of matter at ultimate times, using light pulses of attosecond duration (10-18 s). Our laboratory has been a pioneer in the development and use of these pulses for the study of matter. In particular, we operate several platforms dedicated to attosecond spectroscopy of solids. During this PhD project,…
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PhD-thesis announcement PMS-DICO : ‘Electronic structure of 2 dimensional materials’
CDDCEA Saclay, Site de l’Orme des merisiers (91) Essonne, FranceSeptember 1 202436 monthA joint Ph.D. project between DICO / LIDYL / CEA Saclay (F) and University of Bohemia (CZ) Supervisors: Professors Christine Richter (DICO, CYU), Jan Minar (UWB) Experimental and computational condensed matter & surface physics We are seeking a highly motivated candidate, with good skills in experimental physics, data analysis, and a Master degree in solid…
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Position of Instrumentation technician M/F
CDIEssonne (91)January 1 202512 monthThe person recruited will be involved in the development of experimental instrumentation: this covers the design of small electro-mechanical devices, instrumentation, design with simple CAD elements in conjunction with researchers. Computer control of experiments in place or being set up will be planned and carried out in collaboration with the DICO group’s team of experimenters.…
PhD thesis
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High Harmonic Generation in cavity for an attosecond quantum source
ATTO : Plasma physics and laser-matter interactionsParis-Saclay Ondes et Matière (EDOM) SaclayAttophysics is at the forefront of time-resolved spectroscopy. Indeed, it harnesses the shortest light pulse probe that can be produced experimentally, thanks to the high harmonic generation (HHG)… -
Plasma Mirrors: towards extreme intensity light sources and high-quality compact electron
PHI : Radiation-matter interactionsParis-Saclay Ondes et Matière (EDOM) SaclayResearch objectives: expand the capabilities of the WarpX Partice-In-Cell code for lower cost-to-convergence using mesh refinement. Devise a high-charge highquality injector for laser-plasma… -
Very high energy electrons radiotherapy with beams from a wakefield accelerator
PHI : Radiation-matter interactionsParis-Saclay Ondes et Matière (EDOM) SaclayResearch objectives: Use numerical modelling to optimize the properties of laser-plasma accelerators in the 50 MeV-200 MeV range for VHEE radiotherapy: (i) optimize the properties of a laser-plasma… -
Exploration of the energy deposition dynamic on short time scale with laser-driven electron accelerator in the context of the Flash effect in radiotherapy
PHI : Radiation-matter interactionsParis-Saclay Ondes et Matière (EDOM) SaclayThe objective of the thesis project is to analyze the physicochemical processes resulting from the extreme dose rates that can now be obtained in water with the ultra-short (fs) pulses of…