Results 81 to 90 of about 197,201 (273)

Absorber-Free Mode-Locking of a Hybrid Integrated Diode Laser at Sub-GHz Repetition Rate

Photonics
We demonstrate absorber-free passive and hybrid mode-locking at sub-GHz repetition rates, using a hybrid integrated extended cavity diode laser operating near 1550 nm.
Anzal Memon, Albert van Rees, Jesse Mak, Youwen Fan, Peter J. M. van der Slot, Hubertus M. J. Bastiaens, Klaus-Jochen Boller   +6 more
doaj   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Characterization of Orbital Angular Momentum Beams by Polar Mapping and Fourier Transform

Photonics
The recognition, decoding and tracking of vortex patterns is of increasing importance in many fields, ranging from the astronomical observations of distant galaxies to turbulence phenomena in liquids or gases. Currently, coherent light beams with orbital
Ruediger Grunwald, Martin Bock
doaj   +1 more source

Ring for test of nonlinear integrable optics

, 2011
Nonlinear optics is a promising idea potentially opening the path towards achieving super high beam intensities in circular accelerators. Creation of a tune spread reaching 50% of the betatron tune would provide strong Landau damping and make the beam ...
/Fermilab, /SNS Project, Oak Ridge, Danilov, V., Kashikhin, V., Nagaitsev, S., Valishev, A.   +5 more
core   +1 more source

Modulational instability, solitons and beam propagation in spatially nonlocal nonlinear media

, 2004
We present an overview of recent advances in the understanding of optical beams in nonlinear media with a spatially nonlocal nonlinear response. We discuss the impact of nonlocality on the modulational instability of plane waves, the collapse of finite ...
Anderson D, Assanto G, Banerjee P P, Bang O, Bang O, Benjamin T B, D Edmundson, D Neshev, Dalfovo F, Davydova T A, Dreischuh A, Garmire E, Gatz S, Gordon J P, Hasegawa A, Hutsebaut X, J J Rasmussen, J Wyller, Karpierz M, Kivshar Y S, Kivshar Y S, Kivshar Y S, Królikowski W, Królikowski W, Litvak A G, Menyuk C R, Miller P D, N I Nikolov, Nikolov N I, O Bang, Ostrovskii L A, Parola A, Peccianti M, Peccianti M, Pecseli H L, Pérez-García V M, Rasmussen J J, Shadrivov I V, Skryabin D V, Snyder A, Snyder A, Suter D, Turitsyn S K, W Królikowski, Wyller J, Yang J   +45 more
core   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Large nonlinear Kerr effect in graphene

, 2012
Under strong laser illumination, few-layer graphene exhibits both a transmittance increase due to saturable absorption and a nonlinear phase shift.
Bao, Qiaoliang, Godbout, Nicolas, Kockaert, Pascal, Loh, Kian Ping, Massar, Serge, Virally, Stephane, Zhang, Han   +6 more
core   +1 more source

2D Multifunctional Spin‐Orbit Coupled Dirac Nodal Line Materials

Advanced Functional Materials, EarlyView.
A total of 473 nonmagnetic and antiferromagnetic 2D spin‐orbit coupled Dirac nodal line materials are screened, spanning 5 layer groups and 12 magnetic space groups. Furthermore, it integrates their topological properties with electride, multiferroic, and magnetic characteristics, revealing unique systems with expanded functionalities and promising ...
Weizhen Meng, Ying Liu, Jialin Gong, Yalong Jiao, Xiaoming Zhang, Wenxian Li, Zhenxiang Cheng, Tie Yang   +7 more
wiley   +1 more source

High-Order Harmonics Generation Using Spherical and Non-Spherical Nanoparticles

Nanomaterials
The conversion efficiency of 800 nm, 65 fs radiation toward high-order harmonic generation (HHG) in laser-induced plasmas containing spherical and non-spherical nanoparticles (NPs) produced during the laser ablation of different metals in water using ...
Rashid A. Ganeev, Aigars Atvars
doaj   +1 more source

Interactions of accessible solitons with interfaces in anisotropic media: the case of uniaxial nematic liquid crystals

New Journal of Physics, 2013
We investigate, both theoretically and experimentally, spatial soliton interaction with dielectric interfaces in a strongly anisotropic medium with non-locality, such as nematic liquid crystals. We throw light on the role of refractive index gradients as
A Alberucci, A Piccardi, R Barboza, O Buchnev, M Kaczmarek, G Assanto   +5 more
doaj   +1 more source