5 papers
A novel RF-enabled Non-Destructive Inspection Method through Machine Learning and Programmable Wireless Environments
Stavros Tsimpoukis, Dimitrios Tyrovolas, Sotiris Ioannidis +4
Contemporary industrial Non-Destructive Inspection (NDI) methods require sensing capabilities that operate in occluded, hazardous, or access restricted environments. Yet, the curre…
Bandgap Engineering for Efficient Perovskite Solar Cells Under Multiple Color Temperature Indoor Lighting
Miqad S. Albishi, Faisal I. Alabdulkarem, George Perrakis +20
Perovskite indoor photovoltaics (PIPVs) are emerging as a transformative technology for low-light intensity energy harvesting, owing to their high power conversion efficiencies (PC…
Graphene-Gold THz Metasurfaces with Tailored Resonant Structure for Enhanced Nonlinear Response
Anna Theodosi, Isaac Appiah Otoo, Anastasios D. Koulouklidis +10
Graphene's exceptional nonlinear optical properties combined with resonant photonic structures offer a promising pathway for efficient nonlinear applications at terahertz (THz) fre…
Cactus-like Metamaterial Structures for Electromagnetically Induced Transparency at THz frequencies
Savvas Papamakarios, Odysseas Tsilipakos, Ioannis Katsantonis +7
THz metamaterials present unique opportunities for next generation technologies and applications, as they can fill the ``THz gap'' originating from the weak response of natural mat…
Ultracompact, dynamically controllable circularly polarized laser enabled by chiral metasurfaces
Ioannis Katsantonis, Anna Tasolamprou, Eleftherios Economou +2
We demonstrate a simple, low-cost and ultracompact chiral resonant metasurface design, which, by strong local coupling to a quantum gain medium (quantum emitters), allows to implem…