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Creating and measuring sub-wavelength volumes using quantitative absorption imaging of optically dense ensembles

hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorVEYRON, Romain
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorMANCOIS, Vincent
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorGÉRENT, Jean-Baptiste
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorBACLET, Guillaume
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorBOUYER, Philippe
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorBERNON, Simon
dc.date.accessioned2023-05-12T10:29:40Z
dc.date.available2023-05-12T10:29:40Z
dc.date.conference2022-07-17
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181373
dc.description.abstractEnQuantum gas microscopes have become a major element for quantum simulations using ultra-cold atoms in optical lattices. They are for example used to observe long-range order such as anti-ferromagnetic correlations in far field optical lattices using density and spin resolved microscopy. Decreasing the period of such lattice offer interesting perspective to increase atom-atom interaction energies and engineer atom-light coupling that our group tackles via the hybridization of cold atoms and nano-structured surfaces.In this poster, we will present how such type of sub-wavelength lattice potentials can be generated by trapping atoms in proximity (tens to hundreds of nanometers) of a nano-structured surface. At such atom to surface distance, the attractive Casimir-Polder force can be compensated by a doubly dressed state trapping method that I will discuss. Such method additionally offers solutions to overcome the diffraction limit of conventional imaging that become critical for sub-wavelength lattices. In this work, I will present the experimental characterization of a sub-wavelength resolution absorption imaging applicable to quantum gas detection. This method requires a quantitative determination of the atom number of dense clouds which has been characterized in this work and demonstrate that the scattering cross section reduces linearly with the optical density. Modelling the propagation of light in dense cloud we show that this reduction can be attributed to re-scattering of the incoherent part of the resonant fluorescence spectrum.The poster will additionally present an update on our recent work on the spectroscopy of Acetylene in sealed hollow core fibers.
dc.description.sponsorshipAtomes Ultra-Froids piégés dans des Réseaux Optiques Nano-Structurés - ANR-18-CE47-0001
dc.description.sponsorshipConversion micro-onde - optique intégrée sur puce à atomes supraconductrice - ANR-22-QUA2-0003
dc.language.isoen
dc.title.enCreating and measuring sub-wavelength volumes using quantitative absorption imaging of optically dense ensembles
dc.typeAutre communication scientifique (congrès sans actes - poster - séminaire...)
dc.subject.halPhysique [physics]/Physique Quantique [quant-ph]
dc.subject.halPhysique [physics]/Physique [physics]/Physique Atomique [physics.atom-ph]
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.countryCA
bordeaux.title.proceedingInternational Conference on Atomic Phicsics
bordeaux.conference.cityToronto
bordeaux.peerReviewedoui
hal.identifierhal-03943368
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03943368v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=VEYRON,%20Romain&MANCOIS,%20Vincent&G%C3%89RENT,%20Jean-Baptiste&BACLET,%20Guillaume&BOUYER,%20Philippe&rft.genre=conference


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