Overordnede kursusmål
The course delivers an introduction to the basics of optics and
photonics aiming to familiarise the students with the concept of
light as electromagnetic waves, and its interaction with materials
in the broad range of frequencies. Therefore, a short introduction
into material properties, seen from a light-matter interaction will
be provided. Further on we introduce the concept of metamaterials
(MMs) and consider their properties and applications. We focus on
the state-of-the-art of the metamaterials and current trends in
their developing. Examples of metamaterials in optics and acoustics
and their commercialization potential will be provided. The course
will also discuss the possibilities and challenges in fabrication
of metamaterials for the optical spectra.
Læringsmål
En studerende, der fuldt ud har opfyldt kursets mål, vil kunne:
- Describe why a material can be classified as metal,
semiconductor or dielectric on a classical and on a quantum
levels
- Describe the physical meaning of Maxwell’s equations
- Derive the wave equation form Maxwell’s equations, find and
explain solutions in a different media
- Explain the concept of permittivity and permeability in a
standard material as well as describe their influence on wave
propagation within that material
- Describe and apply the boundary conditions in order to find the
properties of a wave at the interface between two materials
- Calculate the effective parameters of MMs
- Describe the fabrication possibilities for MMs and predict
their properties.
- Discuss the fabrication limitations and their influence on the
properties of the MMs
Kursusindhold
The following concepts and phenomena will be discussed:
- Mathematics of vector operations (cross and dot products), and
operations between
vectors and scalars
- The nabla (∇) operator, its components and the meaning of
gradient, curl and
divergence.
- Maxwell’s equations and wave equation
- Optical properties of materials via dielectric permittivity and
magnetic permeability
- The free electron gas model and its improvements to reflect real
metals
- Electric and magnetic fields boundary conditions
- Effective medium approximation and its limitations
- Propagation of the waves in various materials and metamaterials
- Basic nano-fabrication techniques and their limitations
- Influence of the fabrication possibilities on the properties of
the metamaterials
Sidst opdateret
29. april, 2019
