Zobrazeno 1 - 10
of 572
pro vyhledávání: '"Zheludev N"'
Autor:
Zdagkas, A., Shen, Y., McDonnell, C., Deng, J., Li, G., Ellenbogen, T., Papasimakis, N., Zheludev, N. I.
The transverse electromagnetic waves are major information and energy carriers. In 1996, Hellwarth and Nouchi theoretically identified a radically different, non-transverse type of electromagnetic pulses of toroidal topology. These pulses, which are
Externí odkaz:
http://arxiv.org/abs/2102.03636
High-index dielectric materials are in great demand for nanophotonic devices and applications, from ultrathin optical elements to metal-free sub-diffraction light confinement and waveguiding. Here we show that chalcogenide topological insulators are
Externí odkaz:
http://arxiv.org/abs/1911.09252
Recently it was reported that deeply subwavelength features of free space superoscillatory electromagnetic fields can be observed experimentally and used in optical metrology with nanoscale resolution [Science 364, 771 (2019)]. Here we introduce a ne
Externí odkaz:
http://arxiv.org/abs/1908.00946
Publikováno v:
Phys. Rev. B 97, 201409 (2018)
Transverse electromagnetic plane waves are fundamental solutions of Maxwell's equations. It is less known that a radically different type of solutions has been described theoretically, but has never been realized experimentally, that exist only in th
Externí odkaz:
http://arxiv.org/abs/1707.06088
Publikováno v:
Phys. Rev. B 95, 220201 (2017)
We demonstrate natural optical activity in disordered ensembles of non-chiral plasmonic resonators. We show that the statistical distributions of rotatory power and spatial dichroism are strongly dependent on the scattering mean free path in diffusiv
Externí odkaz:
http://arxiv.org/abs/1610.08432
We study the propagation properties and light-matter interactions of the focused doughnut pulses, broadband, single-cycle electromagnetic perturbations of toroidal topology first described by Hellwarth and Nouchi in 1996. We show how focused doughnut
Externí odkaz:
http://arxiv.org/abs/1512.04285
Autor:
Raybould, T. A., Fedotov, V. A., Papasimakis, N., Kuprov, I., Youngs, I., Chen, W. T., Tsai, D. P., Zheludev, N. I.
Publikováno v:
Phys. Rev. B 94, 035119 (2016)
Optical activity is ubiquitous across natural and artificial media and is conventionally understood in terms of scattering from electric and magnetic moments. Here we demonstrate experimentally and confirm numerically a type of optical activity that
Externí odkaz:
http://arxiv.org/abs/1508.06192
Autor:
Savinov, V., Zheludev, N. I.
By viewing plasmon waves in metallic waveguides as propagating electric and magnetic dipoles we show that according to laws of quantum mechanics they will acquire additional phase when propagating through space with static magnetic field. The new eff
Externí odkaz:
http://arxiv.org/abs/1505.07735
Autor:
Zhu, W. M., Song, Q. H., Liu, A. Q., Tsai, D. P., Cai, H., Shen, Z. X., Huang, R. F., Ting, S. K., Liang, Q. X., Liu, H. Z., Lu, B. H., Zheludev, N. I.
The ability to control resonant properties of individual metamolecule in a metamaterial structure will offer an ultimate freedom for dynamically shaping wavefronts of electromagnetic radiation for applications such as variable aberration corrected pl
Externí odkaz:
http://arxiv.org/abs/1406.2757
Toroidal dipole, first described by Ia. B. Zeldovich [Sov. Phys. JETP 33, 1184 (1957)], is a distinct electromagnetic excitation that differs both from the electric and the magnetic dipoles. It has a number of intriguing properties: static toroidal n
Externí odkaz:
http://arxiv.org/abs/1310.0106