Organisation
|
|
|
|
|
| Aktivitäten
|
|
|
|
|
|
|
|
|
|
|
| Kontakt |
|
|
|
|
|
|
| Angebote für Studenten |
|
|
|
|
Bereiche im
Nanotechnikum |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Martin-Luther-Universität
Interdisziplinäres Zentrum für Materialwissenschaften
Nanotechnikum Weinberg
Heinrich-Damerow-Str. 4, D-06120 Halle, Germany
|
|
D. Pidgayko, I. Sinev, D. Permyakov, S. Sychev, F. Heyroth, V. Rutckaia, J. Schilling, A. Lavrinenko, A. Bogdanov, A. Samusev:
Direct imaging of isofrequency contours of guided modes in extremely anisotropic all-dielectric metasurface.
ACS Photon 6 (2019), 510-515
In this work, we investigate an all-dielectric metasurface based on the silicon on insulator platform for manipulating of guided modes in the visible and near-infrared spectral ranges. We use the Fourier modal method to demonstrate numerically, that guided modes excited in the metasurface support both hyperbolic-like and elliptic dispersion regimes. We implement a back focal plane microscope combined with a high refractive index solid immersion lens to directly image the isofrequency contours of the guided modes (surface waves). Reconstruction of dispersion unambiguously reveals the transition between different dispersion regimes.
Keywords: All-dielectric metasurfaceSurface wavesFourier modal methodIsofrequency contours,Fourier microscopyDispersion reconstruction
DOI. 10.1021/acsphotonics.8b014871nh
|
|
|
|
