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1). Only little attention was paid to the large class of scenarios in which this assumption is no longer satisfied, including (i) minor deviations from the previous condition, |Ω|≲|γ|, as they are exhibited by, for instance, the Buneman instability (Buneman, 1958); (ii) the ...
Topological Euler class as a dynamical observable in optical lattices. Phys. Rev. Lett. 125, 053601 (2020). Article ADS MathSciNet PubMed Google Scholar Tiwari, A. & Bzdušek, T. Non-Abelian topology of nodal-line rings in PT-symmetric systems. Phys. Rev. B 101, 195130 (2020). ...
This work constitutes a milestone towards the practical achievement of this new class of MCs harnessing their advantages. Results Sample structure and STXM measurements. Figure 1 shows a scanning electron microscopy (SEM) image of the sample (Fig. 1a) as well as STXM images of out-of-plane ...
dimensions and 1 time dimension, by constructing a non-linear Fourier transform pair which can be used to solve the Cauchy problem of these equations [22,23]. This second class of equations, however, involves anon-localcommutator. In this paper we will concentrate on the first class, i.e....
Traditional wave kinetics describes the slow evolution of systems with many degrees of freedom to equilibrium via numerous weak non-linear interactions and fails for very important class of dissipative (active) optical systems with cyclic gain and losses, such as lasers with non-linear intracavity dyn...
A simple method of estimating the limit of the single-mode region for any kind of index profile is presented. For a particular class of profiles, dip widths up to 30% have a negligible effect on the propagation characteristics. 展开
2.1.2. Optics To meet instrument performance goals, a custom high-speed, wide-field, imaging lens with five elements was developed. A 13-mm focal length provides a 50° × 40° field of view over the detector at a focal ratio of f/1.2. An achromatic design allows all three bands to ...
There also exists a class of material solitary-like surface waves that originate from spatio-temporal evolution of falling liquid films [13,14]. Since the equipment needed to create falling liquid films is, in general, simpler than that used in experiments in the fields of optics and magnetism...