Results 41 to 50 of about 3,902 (192)

Coherent combining of large-aperture high-energy Nd:glass laser amplifiers

High Power Laser Science and Engineering
We present coherent beam combining of nanosecond pulses with 20-J energy and large beams using a Sagnac interferometer geometry based on Nd:glass rod-type amplifiers.
Pierre Lebegue, Joanna De Sousa, Cyril Rapenau, Doina Badarau, Jordan Andrieu, Patrick Audebert, Frédéric Druon, Dimitrios Papadopoulos   +7 more
doaj   +1 more source

Experimental demonstration of a temporal pulse shaping method based on nonlinear chirp [PDF]

EPJ Web of Conferences
We present a general temporal shaping method based on spectral phase-only modulation for ultrafast laser sources. We explain the working principle of this technique and use it experimentally to generate a ramp-shaped pulse at the output of a laser source
Parize Gautier, Natile Michele, Guichard Florent, Comby Antoine, Hanna Marc, Georges Patrick   +5 more
doaj   +1 more source

Estimation precision of degree of polarization in the presence of signal-dependent and additive Poisson noises [PDF]

Journal of the European Optical Society-Rapid Publications, 2008
We address precision of estimation of the degree of polarization (DOP) from the orthogonal state contrast image (OSCI) in the presence of both signal-dependent Poisson noise due to useful signal, and additive Poisson noise due to dark current and / or ...
Bénière Arnaud, Goudail François, Alouini Mehdi, Dolfi Daniel   +3 more
doaj   +1 more source

WS2 Micro‐Dome Single Photon Source in a Tunable Open Cavity

Advanced Optical Materials, EarlyView.
In this work, a single‐photon source based on WS2 micro‐domes is realized and integrated into an open, tunable optical microcavity. Single‐photon emission from the coupled emitter–cavity system is observed. Detailed analysis shows that a pronounced acoustic phonon emission sideband contributes specifically to the non‐resonant emitter–cavity coupling in
Jens‐Christian Drawer, Salvatore Cianci, Vita Solovyeva, Alexander Steinhoff, Christopher Gies, Falk Eilenberger, Kenji Watanabe, Takashi Taniguchi, Ivan Solovev, Giorgio Pettinari, Federico Tuzi, Elena Blundo, Marco Felici, Antonio Polimeni, Martin Esmann, Christian Schneider   +15 more
wiley   +1 more source

Deterministic Transferable Planar Dielectric Mirrors for Investigating Strong Light–Matter Coupling

Advanced Optical Materials, EarlyView.
Transferable dielectric distributed Bragg reflectors enable the deterministic assembly of high‐quality planar microcavities while maintaining the intrinsic properties of quantum materials during fabrication. The resulting structures exhibit robust exciton‐photon coupling in monolayer WS2${\rm WS}_{2}$ from cryogenic to room temperature, establishing a ...
Atanu Patra, Subhamoy Sahoo, Johannes Düreth, Simon Betzold, Sven Höfling   +4 more
wiley   +1 more source

On‐Chip Photonic Neural Network Architectures

Advanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong, Berkay Neseli, Seungyeon Cho, Seungsoo Lee, Yeonjun Kim, Seungyoon Choi, Hyo‐Hoon Park, Hamza Kurt   +7 more
wiley   +1 more source

Measurements and modeling of high groove density multilayer gratings for EUV spectral range in classical and conical mountings

Journal of the European Optical Society-Rapid Publications
In this work, we study high groove density gratings coated with periodic or aperiodic multilayers, focusing on their extreme ultraviolet performance in both classical and conical diffraction geometries.
Mahmoud Amr Hisham K., Takarit Camélia, Papagiannouli Irene, Capitanio Blandine, Meltchakov Evgueni, de Rossi Sébastien, Delmotte Franck   +6 more
doaj   +1 more source

Endothelial Dysfunction in Fabry Disease Is Related to Glycocalyx Degradation

Frontiers in Immunology, 2021
Fabry disease (FD) is an X-linked multisystemic lysosomal storage disease due to a deficiency of α-galactosidase A (GLA/AGAL). Progressive cellular accumulation of the AGAL substrate globotriaosylceramide (Gb3) leads to endothelial dysfunction.
Solvey Pollmann, David Scharnetzki, Dominique Manikowski, Malte Lenders, Eva Brand   +4 more
doaj   +1 more source

Localized Ion Irradiation Enables Topography‐Free High‐Tc Superconducting Metamaterials

Advanced Optical Materials, EarlyView.
A topography‐free oxygen ion‐irradiation strategy is demonstrated for patterning superconducting YBCO terahertz metamaterials without physical material removal. The approach preserves film integrity while enabling large spectral tunability, ultrafast optical modulation, and dual‐band resonance control, providing a scalable platform for low‐loss ...
Teng Chen Ietro Pang, Yogesh Kumar Srivastava, Sobhan Subhra Mishra, Sambhu Jana, Jérôme Lesueur, Ranjan Singh   +5 more
wiley   +1 more source

Unraveling A4GALT Mechanism and Its Modulation With Adamantyl‐Galactosylceramide Analogues: Advancing Fabry Disease Therapeutic Strategies

Angewandte Chemie, EarlyView.
A 310‐helix‐mediated conformational switch promotes a front‐face SNi‐like catalysis by human A4GALT. Mechanism‐guided design identifies AdaGalCer as a selective modulator of globotriaosylceramide (Gb3) biosynthesis, opening a clear route toward new Fabry disease therapeutics.
Nicky de Koster, Òscar Vidal‐Gironès, Rowan de Graaf, Ken Kok, Lindsey T. Lelieveld, Jackelien Hoogervorst, Maria J. Ferraz, José Pablo Rivas‐Fernández, Rob F. Lammers, Herman S. Overkleeft, Johannes M. F. G. Aerts, Rolf G. Boot, Carme Rovira, Marta Artola   +13 more
wiley   +2 more sources