Flux rss des publications

Publications

Affichage des publications 61 à 70 sur 724 au total

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 -

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 -

Physique

Fine-structure resolution of SiV color centers in CVD nanodiamonds via HPHT annealing

Diamonds and nanodiamonds (NDs) containing quantum color centers, such as nitrogen-vacancy (NV) centers, have been widely studied in recent years for their promising applications across various fields, including cryptography and telecommunications,…

Mary de Feudis, Kin On Ho, Laura Henry, Vanna Pugliese, Boris Yavkin, Marie-Pierre Adam, Nicolas Guignot, Jean-Sébastien Lauret, Fabien Bénédic, Jocelyn Achard, Philippe Goldner, Serge Desgreniers, Jean-François Roch

NANOP 2025: Functional Nanophotonics -

Physique

Rod-Shaped Nanographenes as Emitters in Fluorescent OLEDs

A significant challenge in the field of organic light-emitting diodes (OLEDs) technology is the development of stable, cost-effective, and sustainable emitters. Current emitters are frequently based on rare metals and heteroatom-based chromophores…

Fabien Lucas, Daniel Medina-Lopez, Cynthia Banga-Kpako, Thanh Trung Huynh, Jean-Sébastien Lauret, Stéphane Campidelli

ACS Applied Nano Materials -

Optique

Non-Euclidean Photonics: Pseudosphere and Black Hole Microlasers

Hyperbolic surfaces are surfaces with negative curvature. Theoretical studies of such surfaces have been extensive over the past century. In particular, within the context of quantum chaos, hyperbolic surfaces can exhibit strong chaotic behavior [1]…

Hugo Girin, S. Bittner, C. Lafargue, X. Checoury, D. Decanini, B. Dietz, C. Xu, P. Sebbah, M. Lebental

2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) -

Physique

Patterning of gold nanoparticles in large-area periodic polymer structures by two-beam interference technique

Abstract In this work, we demonstrate a simple and efficient one-step method for fabricating large-area gold nanoparticle (Au NP) gratings within a polymer thin film using a two-beam interference technique. The hybrid metallic/polymer structures…

Quang Truong Pham, Chau Anh Dang, Danh Bich Do, Isabelle Ledoux-Rak, van Minh Nguyen, Ngoc Diep Lai

Applied physics. A, Materials science & processing -