46 citations · 65 across the 5 of their papers we have counts for
5 papers
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…
Strong and Broadband Pure Optical Activity in 3D Printed THz Chiral Metamaterials
Ioannis Katsantonis, Maria Manousidaki, Anastasios D. Koulouklidis +9
Optical activity (polarization rotation of light) is one of the most desired features of chiral media, as it is important for many polarization related applications. However, in th…
Ultrafast modulation in a THz graphene-based flat absorber through negative photoconductivity
Anna C. Tasolamprou, Anastasios D. Koulouklidis, Christina Daskalaki +9
We present the experimental and theoretical study of an ultrafast graphene based thin film absorption modulator for operation in the THz regime. The flat modulator is composed of a…
Phase memory preserving harmonics from abruptly autofocusing beams
Anastasios D. Koulouklidis, Dimitris G. Papazoglou, Vladimir Yu. Fedorov +1
We demonstrate both theoretically and experimentally that the harmonics from abruptly auto-focusing ring-Airy beams present a surprising property, they preserve the phase distribut…