Zobrazeno 1 - 10
of 613
pro vyhledávání: '"Sivan, Y"'
Photoluminescence from metal nanostructures following intense ultrashort illumination is a fundamental aspect of light-matter interactions. Surprisingly, many of its basic characteristics are under ongoing debate. Here, we resolve many of these debat
Externí odkaz:
http://arxiv.org/abs/2302.08333
We employ transformation optics to study analytically nonlinear wave mixing from a singular geometry of touching plasmonic wires. We obtain the analytic solution of the near-field and complement it with a solution of the far-field properties. We find
Externí odkaz:
http://arxiv.org/abs/2011.08662
Autor:
Gurwich, I., Sivan, Y.
Publikováno v:
Phys. Rev. E 96, 012212 (2017)
We show that the standard perturbative (i.e., cubic) description of the thermal nonlinear response of small metal nanospheres to intense continuous wave illumination is insufficient already beyond temperature rises of a few tens of degrees. In some c
Externí odkaz:
http://arxiv.org/abs/1702.03320
We present an extension of the canonical coupled mode theory of electromagnetic waves to the case of pulses and spatio-temporal perturbations in complex media. Unlike previous attempts to derive such a model, our approach involves no approximation, a
Externí odkaz:
http://arxiv.org/abs/1601.04733
We describe novel optical switching schemes operating at femtosecond time scales by employing free carrier (FC) excitation. Such unprecedented switching times are made possible by spatially patterning the density of the excited FCs. In the first real
Externí odkaz:
http://arxiv.org/abs/1504.04026
We present a unified approach for qualitative and quantitative analysis of stability and instability dynamics of positive bright solitons in multi-dimensional focusing nonlinear media with a potential (lattice), which can be periodic, periodic with d
Externí odkaz:
http://arxiv.org/abs/0806.3838
We derive an analytic formula for the lateral dynamics of solitons in a general inhomogeneous nonlinear media, and show that it can be valid over tens of diffraction lengths. In particular, we show that solitons centered at a lattice maximum can be `
Externí odkaz:
http://arxiv.org/abs/0710.2791
The profiles of narrow lattice solitons are calculated analytically using perturbation analysis. A stability analysis shows that solitons centered at a lattice (potential) maximum are unstable, as they drift toward the nearest lattice minimum. This i
Externí odkaz:
http://arxiv.org/abs/0707.1589
We study experimentally the interactions between normal solitons and tilted beams in glass waveguide arrays. We find that as a tilted beam, traversing away from a normally propagating soliton, coincides with the self-defocusing regime of the array, i
Externí odkaz:
http://arxiv.org/abs/nlin/0610008
Publikováno v:
In Clinical Radiology December 2013 68(12):1212-1219
