Metaphotonics is an emerging multidisciplinary field that deals with the manipulation of light in artificially engineered metamaterials using both electrical and magnetic interactions. Metaphotonics offers unprecedented control of both linear and nonlinear optical phenomena at the micro and nanoscale for a variety of applications, from optical switching to metamaterials with negative and near-zero refractive indices, to chiral bioimaging and cloaking. At the same time, the methods and approaches developed in this area find their application in innovative communication technologies. However, the implementation of such applications requires nanoengineering based on the physics of appropriate artificial media with electromagnetic properties in the visible and infrared wavelengths, which are designed to exceed the properties of any naturally occurring material. Within the study course, students will gain knowledge about multipole expansion, resonant metaphotonics, optical properties of metamaterials, design of new devices based on them as well as applications in communication systems.
Course contents:
- Introduction to metaphotonics. The subject and branches of metaphotonics.
- Low-loss high-index materials at telecommunication wavelengths. All-dielectric photonics.
- Dielectric Resonant Metaphotonics. Nanoantennas in telecommunication. Fano and Mie resonances. Bound states in the continuum (BIC).
- Multipole expansion in the scattering problem. Kerker effect. Forward/backward scattering. Anapole regime.
- Toroidal Metaphotonics and Metadevices. Toroidal source. Theory and practical implementation in information transmission devices.
- Hybrid Metaphotonic Devices. Metamaterials. Negative refractive index. Optical properties of metamaterials.
- Two-dimensional materials. Graphene. Metasurfaces.
- Topological Metaphotonics: new platform for the implementation of optical communication schemes immune to disorders.
- Nonlinear Metaphotonics. Microresonator-based Kerr frequency combs in telecommunications. Generation of the second (SHG) and third (THG) harmonics in dielectric nanoantennas and metasurfaces.
- Devices and prospects for the practical application of advanced developments of metaphotonics.
