301 citations · 595 across the 9 of their papers we have counts for
9 papers
Perturbative Born theory for light scattering by time-modulated scatterers
Dionysios Galanis, Evangelos Almpanis, Nikolaos Papanikolaou +1
We present a theoretical framework for electromagnetic scattering by particles with a permittivity that is periodically varying in time, based on a perturbative approach. Within th…
Designing Si sphere metagratings: From perfect reflection to large-angle diffraction
Evangelos Almpanis, Emmanouil Panagiotidis, Nikolaos Stefanou +1
A thorough theoretical study of the optical properties of periodic Si nanosphere arrays is undertaken, placing particular emphasis on the synergy between electric and magnetic Mie…
High-efficiency triple-resonant inelastic light scattering in planar optomagnonic cavities
Petros Andreas Pantazopoulos, Kosmas L. Tsakmakidis, Evangelos Almpanis +2
Optomagnonic cavities have recently been emerging as promising candidates for implementing coherent microwave-to-optical conversion, quantum memories and devices, and next generati…
Layered optomagnonic structures: Time Floquet scattering-matrix approach
Petros-Andreas Pantazopoulos, Nikolaos Stefanou
A fully dynamic theoretical approach to layered optomagnonic structures, based on a time Floquet scattering-matrix method, is developed. Its applicability is demonstrated on a simp…
Acoustic properties of colloidal crystals
I. E. Psarobas, R. Sainidou, N. Stefanou +1
We present a systematic study of the frequency band structure of acoustic waves in crystals consisting of nonoverlapping solid spheres in a fluid. We consider colloidal crystals co…
Scattering and absorption of light by periodic and nearly periodic metallodielectric structures
V. Yannopapas, A. Modinos, N. Stefanou
We consider the effect of different approximations to the dielectric function of a silver sphere on the absorption of light by two-dimensional and three-dimensional periodic and no…