Since Terahertz (THz) has a properties of both infrared and microwaves, in recent years, Terahertz technology has shown a great progress, and due to this many THz devices have been developed. However, due to lack of suitable natural material at THz frequency range, controlling the polarization state of THz wave is a big challenge. Controlling or/and manipulating the polarization state in THz wave range is very important in many applications like THz imaging, communication and sensitive detection. Recently, metasurfaces are used to change the amplitude and phase of the incident beam, while natural materials cannot. They can be designed to work at different frequency on a subwavelength scale in ways that normal materials cannot.
The goal of this PhD is to investigate the basic material properties (i.e. elastic mechanical properties, thermal properties and dielectric properties, also the combination of these three properties), study different measurement techniques for thermally dependent and stress dependent material properties, design tunable multi-functional meta-materials and characterization of tunable metamaterials, fabricate a new material that will satisfy both good mechanical elasticity and high electrical conductivity.
The project’s core objective is to investigate the interaction of compression methods and explainability methods, particularly in the realm of large-scale (distributed) AI systems: using one to empirically evaluate the other or applying them jointly so that they can bootstrap or strengthen one another. Our particular aim is to develop a framework that addresses the aforementioned gaps in international research.