Journal article
Direct imaging of isofrequency contours of guided modes in extremely anisotropic all-dielectric metasurface
St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)1
Martin Luther University Halle-Wittenberg2
Department of Photonics Engineering, Technical University of Denmark3
Metamaterials, Department of Photonics Engineering, Technical University of Denmark4
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.
| Language: | English |
|---|---|
| Publisher: | American Chemical Society |
| Year: | 2019 |
| Pages: | 510-515 |
| ISSN: | 23304022 |
| Types: | Journal article |
| DOI: | 10.1021/acsphotonics.8b01487 |
| ORCIDs: | 0000-0002-5485-2968 , 0000-0002-4246-7747 , 0000-0003-2708-9140 , 0000-0001-8890-1775 , Lavrinenko, Andrei V. , 0000-0002-8215-0445 and 0000-0002-3547-6573 |
