Plasmonic hole arrays with extreme optical chirality in linear and nonlinear regimes

2016 ◽  
Author(s):  
Maxim V. Gorkunov ◽  
Alexei V. Kondratov ◽  
Alexander N. Darinskii ◽  
Vladimir V. Artemov ◽  
Oleg Y. Rogov ◽  
...  
Keyword(s):  
Optical Chirality ◽  
Linear And Nonlinear ◽  
Hole Arrays ◽  
Nonlinear Regimes

Full-wave test of the radial correlation reflectometry analytical theory in linear and nonlinear regimes

2006 ◽  
Vol 48 (9) ◽  
pp. 1389-1400 ◽  
Author(s):  
G Leclert ◽  
S Heuraux ◽  
E Z Gusakov ◽  
A Yu Popov ◽  
I Boucher ◽  
...  
Keyword(s):  
Analytical Theory ◽  
Full Wave ◽  
Linear And Nonlinear ◽  
Nonlinear Regimes

scholarly journals Unexpected entanglement dynamics in semidilute blends of supercoiled and ring DNA

Soft Matter ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 152-161 ◽  
Author(s):  
Karthik R. Peddireddy ◽  
Megan Lee ◽  
Yuecheng Zhou ◽  
Serenity Adalbert ◽  
Sylas Anderson ◽  
...  
Keyword(s):  
Entanglement Dynamics ◽  
Linear And Nonlinear ◽  
Nonlinear Regimes

Semidilute blends of supercoiled and ring DNA exhibit surprising entanglement dynamics both in linear and nonlinear regimes.

Optimisation of micro-perforated cylindrical silencers in linear and nonlinear regimes

2016 ◽  
Vol 363 ◽  
pp. 359-379 ◽  
Author(s):  
Teresa Bravo ◽  
Cédric Maury ◽  
Cédric Pinhède
Keyword(s):  
Linear And Nonlinear ◽  
Nonlinear Regimes

The Origin and Evolution of Halo Bias in Linear and Nonlinear Regimes

1999 ◽  
Vol 520 (2) ◽  
pp. 437-453 ◽  
Author(s):  
Andrey V. Kravtsov ◽  
Anatoly A. Klypin
Keyword(s):  
Origin And Evolution ◽  
Linear And Nonlinear ◽  
Nonlinear Regimes

Influence of Transverse Cross‐Phases on Propagations of Optical Beams in Linear and Nonlinear Regimes

2020 ◽  
Vol 14 (12) ◽  
pp. 2000141
Author(s):  
Guo Liang ◽  
Huicong Zhang ◽  
Lei Fang ◽  
Qian Shou ◽  
Wei Hu ◽  
...  
Keyword(s):  
Linear And Nonlinear ◽  
Optical Beams ◽  
Nonlinear Regimes

scholarly journals Direct numerical simulations of an inertial wave attractor in linear and nonlinear regimes

2014 ◽  
Vol 745 ◽  
pp. 223-250 ◽  
Author(s):  
Laurène Jouve ◽  
Gordon I. Ogilvie
Keyword(s):  
Numerical Simulations ◽  
Gravity Waves ◽  
Dissipation Rate ◽  
Laboratory Experiments ◽  
Rotation Axis ◽  
Internal Gravity Waves ◽  
Direct Numerical Simulations ◽  
Inertial Wave ◽  
Linear And Nonlinear ◽  
Nonlinear Regimes

AbstractIn a uniformly rotating fluid, inertial waves propagate along rays that are inclined to the rotation axis by an angle that depends on the wave frequency. In closed domains, multiple reflections from the boundaries may cause inertial waves to focus onto particular structures known as wave attractors. These attractors are likely to appear in fluid containers with at least one boundary that is neither parallel nor normal to the rotation axis. A closely related process also applies to internal gravity waves in a stably stratified fluid. Such structures have previously been studied from a theoretical point of view, in laboratory experiments, in linear numerical calculations and in some recent numerical simulations. In the present paper, two-dimensional direct numerical simulations of an inertial wave attractor are presented. By varying the amplitude at which the system is forced periodically, we are able to describe the transition between the linear and nonlinear regimes as well as the characteristic properties of the two situations. In the linear regime, we first recover the results of the linear calculations and asymptotic theory of Ogilvie (J. Fluid Mech., vol. 543, 2005, pp. 19–44) who considered a prototypical problem involving the focusing of linear internal waves into a narrow beam centred on a wave attractor in a steady state. The velocity profile of the beam and its scalings with the Ekman number, as well as the asymptotic value of the dissipation rate, are found to be in agreement with the linear theory. We also find that, as the beam builds up around the wave attractor, the power input by the applied force reaches its limiting value more rapidly than the dissipation rate, which saturates only when the beam has reached its final thickness. In the nonlinear regime, the beam is strongly affected and becomes unstable to a subharmonic instability. This instability transfers energy to secondary waves possessing shorter wavelengths and lower frequencies. The onset of the instability of a narrow inertial wave beam is investigated by means of a separate linear analysis and the results, such as the onset of the instability, are found to be consistent with the global simulations of the wave attractor. The excitation of such secondary waves described theoretically in this work has also been seen in recent laboratory experiments on internal gravity waves.

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