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Publications

Affichage des publications 11 à 20 sur 686 au total

Physique

Anomalous high-density spin noise in a strongly interacting atomic vapor

Spin noise spectroscopy (SNS) has become a mainstream approach to probe the dynamics of a spin ensemble in and out of equilibrium. Current models describing spin noise in interacting samples are based on an effective single-particle dynamics in a…

J. Delpy, N. Fayard, Fabien Bretenaker, F. Goldfarb

Physical Review Research -

Matériaux

Vapor Deposition of Hybrid Halide Perovskites in Ultra-High Vacuum: Challenges Revealed by Probing the Organization Dynamics in Real Time

With record efficiencies and reduced costs, hybrid halide perovskite solar cells could revolutionize photovoltaics, provided that the crippling instability problem is resolved. To reveal the relationship between structural defects and instability,…

Abdel R Allouche, Christian P Sonny Tsotezem, Arindam Mukherjee, Elena M Staicu Casagrande, Anouchah Momeni, Aimeric Ouvrard, Yimin Guan, Laurent Guillemot, Daniela Torres-Díaz, Lionel Amiaud, Anne Lafosse, Adnan Naja, Gaëlle Trippé-Allard, Emmanuelle Deleporte, Hocine Khemliche

Journal of Physical Chemistry C -

Cancer

Photodynamic Therapy Using Pulsed-Laser Irradiation of Gold Nanoparticles for the Treatment of Cancers with High Basal Oxidative Stress

For over 20 years, considerable research has been carried out on the use of nanotechnologies in cancer treatment. Beyond the photothermal effect of irradiating gold nanoparticles, the photodynamic effect with reactive oxygen species (ROS) production…

Léa Tourneur, Syrine Gueffrache, Khanh-Van Do, Justine Paris, Yoann Lalatonne, Erwann Guénin, Diaddin Hamdan, Charlotte Comte, Alexandra Marsocci, Benoît Caron, Emmanuel van Glabeke, Sylvie Marguet, Christophe Leboeuf, Bruno Palpant, Guilhem Bousquet

Nano Letters -

Physique

About carrier's self-trapping and dynamical Rashba splitting in the two-dimensional hybrid perovskite (BA)$_2$(MA)$_2$Pb$_3$I$_{10}$

Time- and Angle-Resolved Photoelectron Spectroscopy (tr-ARPES) is employed to monitor photoexcited electrons in the two-dimensional hybrid perovskite (BA)$_2$(MA)$_2$Pb$_3$I$_{10}$. Photoelectron intensity maps are in good agreement with ab-initio…

W. Qi, S. Ponzoni, G. Huitric, V. Gorelov, A. Pramanik, Y. Laplace, M. Marsi, E. Papalazarou, S. Maehrlein, E. Deleporte, N. Mallik, A. Taleb Ibrahimi, A. Bendounan, K. Zheng, T. Pullerits, L. Perfetti

Physique

Ultrafast dynamics of relaxation in well-dispersed quantum-confined nanographenes

Probing the intrinsic dynamics of excited-state relaxation in graphene quantum dots presenting exceptional dispersion stability, precisely controlled number of conjugated carbon rings and photoluminescence quantum yield of almost unity.

Sébastien Quistrebert, Daniel Medina-Lopez, Cynthia Banga-Kpako, Thanh Trung Huynh, Stéphane Campidelli, Jean-Sébastien Lauret, Elsa Cassette

Nanoscale -

Physique

Collective Fluorescence of Graphene Quantum Dots on a surface

This study explores the organization of graphene quantum dots on the surface of monocrystalline halide perovskite. We show that graphene quantum dots tends to aggregate on the surface of perovskite unlike in solution or on other substrates, even at…

Hugo Levy-Falk, Suman Sarkar, Thanh Trung Huynh, Daniel Medina-Lopez, Lauren Hurley, Océane Capelle, Muriel Bouttemy, Gaëlle Trippé-Allard, Stéphane Campidelli, Loïc Rondin, Elsa Cassette, Emmanuelle Deleporte, Jean-Sébastien Lauret

photonique

Non-symmetrical vortex beam shaping in VECSEL laser arrays

We propose and numerically test, to our knowledge, a novel concept for asymmetric vortex beam generation in a degenerate vertical external cavity surface emitting laser (DVECSEL). The method is based on a phase-locking ring array of lasers created…

Sopfy Karuseichyk, Ilan Audoin, Vishwa Pal, Fabien Bretenaker

Photonics research -