SC438 - Photonic Metamaterials
Tuesday, 15 May
12:00 - 16:00
Short Course Level: Beginner
Nader Engheta, University of Pennsylvania, USA
Short Course Description:
Controlling electromagnetic and optical fields and waves can be achieved via materials. The wave-matter interaction can be engineered using structures made of materials with required parameters and structures with selected shapes, dimensions and sizes. Recent advances in materials science and engineering, condensed matter physics, optical materials, nanoscience and nanotechnology have made it possible to tailor materials with unusual parameters and characteristics. The field of metamaterials, along with its two-dimensional version known as metasurfaces, has seen growing interest and extensive development in recent years. Metamaterials are engineered composite structures made of subwavelength inclusions with suitable materials and proper arrangements. The compositions, arrangements, alignments, densities and distributions of these building blocks in host media provide a variety of degrees of freedom in the design of light-matter interaction with such structures. Manipulation of light at the nano-, micro-, meso- and macroscales using metamaterials and metasurfaces provides rich platforms for tailoring electromagnetic waves with desired functionalities.
In this tutorial, we will begin with the basics of electromagnetic wave interaction with material media and structures. Then the course will get into some of the specifics of the characteristics of metamaterials and metasurfaces including the dispersion properties, scattering mechanisms, effective-medium phenomena, and unconventional features of waves in such environments. We will then discuss some of the specific topics in photonic metamaterials such as extreme-parameter metamaterials (i.e., epsilon-near-zero (ENZ), mu-near-zero (MNZ), and epsilon-and-mu-near-zero (EMNZ) structures) and their specialized wave-matter interactions, graphene metamaterials as a platform for ideas for one-atom-thick optical device concepts, optical metatronics (“lumped” nanocircuitry) and informatic metastuctures for photonic information processing and computing at the nanoscale, scattering engineering using metamaterials (such as cloaking), guided waves in metamaterials, and nonreciprocal metastructures. Various features and potential applications of these topics will also be presented and discussed. During the course, we will have interactive discussions and question-answer sessions.
Short Course Benefits:
This course should enable participants to:
Describe the basics of electromagnetic field and wave interaction with metamaterials and metasurfaces
Explain some of the important properties of photonic metamaterials
Discuss some of the scenarios in light-matter interaction with “extreme-parameter” metamaterials
Describe the fundamentals of optical nanocircuits (“optical metatronics”), with potentials for information processing in nanophotonics
Explain some of the salient features of scattering and guidance of lights in metamaterials and metasurfaces
Short Course Audience:
Graduate students and senior undergraduates with EE, Physics, and Applied Physics interests; Engineers, researchers and technical managers from industry, government labs, and universities; Introductory knowledge of electromagnetics and optics is required.
Nader Engheta is the H. Nedwill Ramsey Professor at the University of Pennsylvania in Philadelphia. He received his PhD degree from Caltech. His current research activities span a broad range of areas including nanophotonics, metamaterials, nano-scale optics, graphene optics, imaging and sensing inspired by eyes of animal species, optical nanoengineering, microwave and optical antennas, and engineering and physics of fields and waves. His most recent awards include 2017 William Streifer Scientific Achievement Award, 2017 Beacon of Photonics Industry Award, 2015 SPIE Gold Medal, 2015 Fellow of US National Academy of Inventors, 2015 National Security Science and Engineering Faculty Fellow (NSSEFF) Award from DoD, 2015 IEEE Antennas and Propagation Distinguished Achievement Award, 2014 Balthasar van der Pol Gold Medal from URSI, and 2012 IEEE Electromagnetics Award. He is a Fellow of IEEE, OSA, APS, MRS, SPIE, URSI, and American Association for the Advancement of Science (AAAS). He has received honorary doctoral degrees from Aalto University, Finland (2016), and from University of Stuttgart, Germany (2016).