Belépés címtáras azonosítással
angol nyelvű adatlap
magyar nyelvű adatlap
Electromagnetic Metamaterials and Its Applications
A tantárgy neve magyarul / Name of the subject in Hungarian: Elektromágneses metaanyagok és alkalmazásaik
Last updated: 2016. október 13.
Műszaki Informatika Szak
Dr. Szabó Zsolt, Habil
Physics, Electromagnetic fields.
There is no prerequisite.
The goal of these
lectures is to introduce the topic of electromagnetic wave interaction with
artificial electromagnetic structures (composites, metamaterials and photonic
crystals) to engineering students. After explaining the physical foundations
the commonly used electromagnetic structures are described and the devices,
which utilizes artificial structures are presented. The classes cover the
topics required from electromagnetism to develop the theory and presents
engineering design methodologies of devices based on artificial structures.
Microscopic Maxwell Equations. The wave equation and gauge theory. Retarded
potentials. The sources of the electromagnetic waves.
of electric and magnetic dipoles. The ratio of the radiated powers from
electric and magnetic dipoles. The matter modelled as a superposition of
radiating dipoles. Magnetic precession in homogeneous magnetic field. The
characteristic time of the magnetic precession and why there are no magnetic
materials at optical frequencies.
frequency dependence of the electromagnetic material parameters. The electric
permittivity of dielectric materials. The electric permittivity of metals. The
variation of material parameters at nanometer scale. The properties of anisotropic
4. The transmission and reflection of
electromagnetic waves through thin films.
basics of plasmonics. Phenomena at the interface of metal-dielectric
structures. Layered structures: dielectric-metallic-dielectric
and metallic-dielectric-metallic structures. Plasmonic waveguides and sensors.
structures in computational electromagnetism. The concept of the perfectly
matched layers and utilization as absorbing boundary condition in the Finite
Difference Time Domain method.
scattering of the electromagnetic waves from nanoparticles with arbitrary
shape. Scattering from spherical particles. Nanoantennas.
8. Composite materials. The Maxwell Garnett and
the Brugemann mixing rules.
9. Periodic structures for radio frequencies
and microwaves. Frequency selective surfaces. Perfect electric Conducting and
Perfect Magnetic Conducting surfaces.
The concept of negative refraction and negative index. Interaction of
electromagnetic waves with a negative index media. The homogenization of
metamaterials. Design of the electric permittivity with periodic metallic
nanowires. The electric permittivity of nanostructures. Magnetism at optical
frequencies. The permeability of resonant metallic structures. The split ring
resonator and fishnet metamaterials. The application of metamaterials for
sub-diffraction imaging, electromagnetic cloaking anmd unconventional
crystals. The Bragg diffraction. Analytic computation of band structures of one
dimensional photonic crystals. Forbidden bands. Two and three dimensional
photonic crystals. Dispersion equations. Numerical methods to calculate band
structure. Application of the photonic crystals: cavities and waveguides.
integration of optical, plasmonic and electronic devices.
with computer demonstrations and exercises.
the semester each student will receive a customized problem, which is required
to be solved for the final exam. To qualify for the final exam signature at the
end of classes must be obtained. The signature is obtained based on the
presentation of a scientific paper related to composites, metamaterials or
exam: solution of the problem and oral presentation.
is no pre-examination.
The presentation can
be completed during the last week of the semester.
during formal office hours, after lectures and anytime you can catch me.
1. D. J. Griffiths,
Introduction to Electrodynamics, Third Edition, Pearson, Addison Wesly, 1999.
2. C. F. Bohren, D. R. Huffman, Absorption
and Scattering of Light by Small Particles, Wiley-VCH Verlag GmbH & Co. KGaA, 2004.
3. A. Sihvola, Electromagnetic Mixing Formulae and Applications, The
Institution of Engineering and Technology, 2000.
4. B. Munk, Frequency Selective Surfaces: Theory and Design, John Willey & Sons, 2000.
5. L. Solymár and E.
Shamonina, Waves in Metamaterials.
Oxford, University Press, 2009.
6. J. D.
Joannopoulos, S. G. Johnson, J. N. Winn, R. D. Meade, Photonic Crystals,
Molding the Flow of Light, Second Edition, Princeton University Press, 2008.
Szabó Zsolt, Habil