Invariant superoscillatory electromagnetic fields in 3D-space Academic Article

abstract

• 2016 IOP Publishing Ltd. We derive exact solutions of Maxwell's equations based on superoscillatory superpositions of vectorial Bessel beams. These novel beams are diffraction-free and can support subwavelength features in their transverse electromagnetic fields, without the presence of any evanescent waves. These features can be propagated into the far field. Approximate solutions in closed form are also derived based on asymptotic expansions of Bessel functions for simple prescribed subwavelength patterns. The superoscillatory characteristics of both electric, magnetic field components (transverse and longitudinal), and the Poynting vector, as well as, the effect of nonparaxiality are systematically investigated.

authors

• Tzortzakis, Stylianos

published proceedings

• Journal of Optics

author list (cited authors)

• Makris, K. G., Papazoglou, D. G., & Tzortzakis, S.

citation count

• 6

complete list of authors

• Makris, KG||Papazoglou, DG||Tzortzakis, S

publication date

• January 2017

publisher

• IOP Publishing  Publisher

published in

• Journal of Optics  Journal

keywords

• 40 Engineering
• 4008 Electrical Engineering
• 51 Physical Sciences
• 5102 Atomic, Molecular And Optical Physics

Digital Object Identifier (DOI)

• 10.1088/2040-8978/19/1/014003

start page

• 014003

end page

• 014003

volume

• 19

issue

• 1

URL

• http://dx.doi.org/10.1088/2040-8978/19/1/014003