37 citations · 68 across the 3 of their papers we have counts for
3 papers
Large bandwidth, highly efficient optical gratings through high index materials
Helmut Rathgen, H. L. Offerhaus
We analyze the diffraction characteristics of dielectric gratings that feature a high index grating layer, and devise, through rigorous numerical calculations, large bandwidth, hig…
Nanometer-Resolved Collective Micromeniscus Oscillations through Optical Diffraction
Helmut Rathgen, Kazuyasu Sugiyama, Claus-Dieter Ohl +2
We study the dynamics of periodic arrays of micrometer-sized liquid-gas menisci formed at superhydrophobic surfaces immersed into water. By measuring the intensity of optical diffr…
Polar magneto-optical Kerr effect for low-symmetric ferromagnets
Helmut Rathgen, Mikhail I. Katsnelson, Olle Eriksson +1
The polar magneto-optical Kerr effect (MOKE) for low-symmetric ferromagnetic crystals is investigated theoretically based on first-principle calculations of optical conductivities…