25 citations · 44 across the 2 of their papers we have counts for
8 papers
Reconfigurable chirality with achiral excitonic materials in the strong-coupling regime
P. Elli Stamatopoulou, Sotiris Droulias, Guillermo P. Acuna +2
We introduce and theoretically analyze the concept of manipulating optical chirality via strong coupling of the optical modes of chiral nanostructures with excitonic transitions in…
Chiral sensing with achiral anisotropic metasurfaces
Sotiris Droulias, Lykourgos Bougas
Recently, we proposed a metasurface design for chiral sensing that (i) results in enhanced chiroptical signals by more than two orders of magnitude for ultrathin, subwavelength, ch…
Chiral sensing with achiral isotropic metasurfaces
Sotiris Droulias
Metasurfaces, the two-dimensional analogues of metamaterials, are ideal platforms for sensing molecular chirality at the nanoscale, e.g. of inclusions of natural optically active m…
Scattering properties of PT-symmetric chiral metamaterials
Ioannis Katsantonis, Sotiris Droulias, Costas M. Soukoulis +2
The combination of gain and loss in optical systems that respect parity-time (PT)-symmetry has pointed recently to a variety of novel optical phenomena and possibilities. Many of t…
PT-symmetric chiral metamaterials: Asymmetric effects and PT-phase control
Ioannis Katsantonis, Sotiris Droulias, Costas M. Soukoulis +2
We investigate the influence of chirality on the PT-symmetric and PT-broken phase of PT-symmetric chiral systems. Starting from the point that transverse magnetic (TM) and transver…
Accessible phases via wave impedance engineering with PT-symmetric metamaterials
Sotiris Droulias, Ioannis Katsantonis, Maria Kafesaki +2
Optical systems that respect Parity-Time (PT) symmetry can be realized with proper incorporation of gain/loss materials. However, due to the absence of magnetic response at optical…