Results 81 to 90 of about 198,874 (293)

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

Surface Nonlinear Optics

Nonlinear Optics, 2011
Early work on nonlinear optical reflection at surfaces and interfaces has led to the development of surface nonlinear optical spectroscopy as a powerful technique for surface and interface studies.
openaire   +3 more sources

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source

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

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

Shaping Ti3C2 MXene Nanospheres for Precision Near‐Infrared Photothermal Therapy

Advanced Functional Materials, EarlyView.
In this study, we report producing spherical MXenes via fs laser fragmentation of Ti3C2 flakes in liquid medium. The nanoparticles demonstrated pronounced light absorption and high photothermal conversion efficiencies of 68% and 63% under heating with NIR‐I and NIR‐II lasers, respectively.
Julia S. Babkova, Ivan V. Zelepukin, Konstantin G. Shevchenko, Gleb V. Tikhonowski, Lyubov V. Gorelik, Anton A. Popov, Anna S. Sogomonyan, Alina Yu. Kapitannikova, Ivan S. Kazantsev, Dmitry V. Dyubo, Daria A. Panova, Daniil I. Tselikov, Anton A. Minnekhanov, Aziz B. Mirkasymov, Georgy A. Ermolaev, Alexander V. Syuy, Gleb I. Tselikov, Aleksey V. Arsenin, Andrei V. Kabashin, Kostya S. Novoselov, Sergey M. Deyev, Valentyn S. Volkov   +21 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

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

Advanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng, Chun‐Hao Chiang, Sunhao Shi, Jui‐Han Fu, Yen‐Ju Wu, Kuniaki Konishi, Vincent Tung, Chun‐Wei Chen, Ya‐Lun Ho   +8 more
wiley   +1 more source

Nonlinear photonic crystals near the supercollimation point

, 2008
We uncover a strong coupling between nonlinearity and diffraction in a photonic crystal at the supercollimation point. We show this is modeled by a nonlinear diffraction term in a nonlinear schroedinger type equation, in which the properties of solitons ...
Björn Maes, Gomez-Gardeñes, Jiang, John, John D. Joannopoulos, Kosaka, Lax, Lluis Torner, Marin Soljačić, Marklund, Notomi, Pushkarov, Pustai, Rakich, Salerno, Shin, Soljacic, Witzens, Xunya Jiang, Yablonovitch, Zhiyong Xu   +20 more
core   +1 more source

Nonlinear processing with linear optics

Nature Photonics
AbstractDeep neural networks have achieved remarkable breakthroughs by leveraging multiple layers of data processing to extract hidden representations, albeit at the cost of large electronic computing power. To enhance energy efficiency and speed, the optical implementation of neural networks aims to harness the advantages of optical bandwidth and the ...
Mustafa Yildirim, Niyazi Ulas Dinc, Ilker Oguz, Demetri Psaltis, Christophe Moser   +4 more
openaire   +3 more sources