講師：Dr. Withawat Withayachumnankul (Lecturer, University of Adelaide, Australia)
タイトル：Metamaterial-inspired terahertz components
Terahertz radiation has become an important research area in the field of electromagnetics.
Known as the ‘terahertz gap’, the radiation in this 0.1 to 10 THz frequency range was initially
difficult to access with conventional electronic or photonic techniques. Advents of unconventional
techniques have made possible terahertz emitters and detectors with a size of a pinhead.
On the other hand, achieving practical applications requires novel components to manipulate terahertz waves. However, most natural materials exhibit weak electromagnetic responses at terahertz frequencies.
For this purpose, microstructures become necessary to construct exotic terahertz components.
This seminar discusses some activities on terahertz microstructure research at the University of Adelaide. It covers a diverse range of components, including reflectarrays, modulators, polarization converters, absorbers, frequency selective surfaces, and dielectric resonators. It will also provide some background into terahertz technology and metamaterials.