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Cité 2 fois dans les médias — pédagogie reconnue
✨ Génération du profil synthétique IA en cours…
Articles déposés en accès libre sur l'archive ouverte des universités françaises (HAL) — gage d'activité de recherche en France.
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Composite laser-pulses spectroscopy for high-accuracy optical clocks: a review of recent progress and perspectives
2018ArticleReports on Progress in Physics
Source : HAL — archive ouverte CCSD/CNRS (couvre articles, chapitres EMC, communications congrès, thèses).
Secteur de conventionnement non disponible (médecin hospitalier ou non présent dans l'Annuaire santé CNAM des libéraux conventionnés).
Lien Doctolib = recherche Google site:doctolib.fr (le 1er résultat est presque toujours le profil correct s'il existe).
Source : Google News (recherche par nom complet — homonymes possibles, vérifier le contenu).
📰 La République du Centre · 12/12/2025
<a href="https://news.google.com/rss/articles/CBMikwFBVV95cUxQSkJpM01tWXpnekRLMlN4S2JDbkdRQXY0N0wybFlQWmVNenVJa1ZJRG42NTJtTEhIeHRNd0hzZ2ppaC13Vkl5b094dS12SHluWEt5NlhOSWdTSGU2elAyZnFjd3VjVGlsVXVveWUwMTRDeEVmakQzSzBvc3VTcmE2WGMydm5rM1Z2aGt3dUd6Vlp6T1E?oc=5" target="_blank">Le docteur Lefèvre à la retr
📰 La République du Centre · 26/10/2024
<a href="https://news.google.com/rss/articles/CBMi9wFBVV95cUxOcVVucTZlVU9vVDY1WkFfRHdnTHFIaElyOGVZbHhOX0FpQWIwSWdCeGkxVzhrdndBX3B1dUxMRllkemtYZXVXSkZualNKOGt6OG1WcmJrZ1UycjdsTnAtbVZGdVhJT0ktV200N1BNUDQ4MTVPVjRhbHFidU16Z3VZNmxzVHpvTjBnVnE4S1FQd0FlSUN6OWhxTng3T1EwZVlBY2tMX2MteW1kaDBETkRETlJOWTRaV0JRTz
Reports on progress in physics. Physical Society (Great Britain) · 2018
Abstract Probing an atomic resonance without disturbing it is an ubiquitous issue in physics. This problem is critical in high-accuracy spectroscopy or for the next generation of atomic optical clocks. Ultra-high resolution frequency metrology requires sophisticated interrogation schemes and robust protocols handling pulse length errors and residual frequency detuning offsets. This review reports recent progress and perspective in such schemes, using sequences of composite laser-pulses tailored in pulse duration, frequency and phase, inspired by NMR techniques and quantum information processing. After a short presentation of Rabi technique and NMR-like composite pulses allowing efficient compensation of electromagnetic field perturbations to achieve robust population transfers, composite laser-pulses are investigated within Ramsey’s method of separated oscillating fields in order to generate non-linear compensation of probe-induced frequency shifts. Laser-pulses protocols such as hyper-Ramsey, modified hyper-Ramsey, generalized hyper-Ramsey and hybrid schemes as auto-balanced Ramsey spectroscopy are reviewed. These techniques provide excellent protection against both probe induced light-shift perturbations and laser intensity variations. More sophisticated schemes generating synthetic frequency-shifts are presented. They allow to reduce or completely eliminate imperfect correction of probe-induced frequency-shifts even in presence of decoherence due to the laser line-width. Finally, two universal protocols are presented which provide complete elimination of probe-induced frequency shifts in the general case where both decoherence and relaxation dissipation effects are present by using exact analytic expressions for phase-shifts and the clock frequency detuning. These techniques might be applied to atomic, molecular and nuclear frequency metrology, Ramsey-type mass spectrometry as well as precision spectroscopy.
Source PubMed · Recherche par auteur (homonymes possibles, vérifier l'affiliation).
Reports on progress in physics. Physical Society (Great Britain) · 2018 · Published Erratum
Zanon-Willette T, Lefevre R, Metzdorff R, Sillitoe N, et al.
Reports on progress in physics. Physical Society (Great Britain) · 2018 · Journal Article
Zanon-Willette T, Lefevre R, Metzdorff R, Sillitoe N, et al.