25 citations · 45 across the 12 of their papers we have counts for
9 papers · 1 filter
Ultrafast All-optical control of Multiple Light Degrees of Freedom through Mode-mixing in a Graphene Nanoribbon Metamaterial
Nikolaos Matthaiakakis, Sotiris Droulias, George Kakarantzas
The evolution of optical technologies necessitates advanced solutions for selective and dynamic manipulation of light's degrees of freedom, including amplitude, phase, polarization…
Vortex inverted pin beams: Mitigation of scintillations in strong atmospheric turbulence
Sotiris Droulias, Michalis Loulakis, Dimitris G. Papazoglou +3
We recently introduced a new class of optical beams with a Bessel-like transverse profile and increasing beam width during propagation, akin to an "inverted pin". Owing to their sp…
Inverted pin beams for robust long-range propagation through atmospheric turbulence
Sotiris Droulias, Michalis Loulakis, Dimitris G. Papazoglou +3
We introduce a new class of optical beams, which feature a spatial profile akin to an ``inverted pin''. In particular, we asymptotically find that close to the axis the transverse…
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…
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…