Abstract
Recently introduced field of topological photonics aims to explore the concepts of topological insulators for novel phenomena in optics. Here polymeric chains of subwavelength silicon nanodisks are studied and it is demonstrated that these chains can support two types of topological edge modes based on magnetic and electric Mie resonances, and their topological properties are fully dictated by the spatial arrangement of the nanoparticles in the chain. It is observed experimentally and described how theoretically topological phase transitions at the nanoscale define a change from trivial to nontrivial topological states when the edge mode is excited.
| Original language | English |
|---|---|
| Article number | 1603190 |
| Journal | Small |
| Volume | 13 |
| Issue number | 11 |
| DOIs | |
| State | Published - Mar 21 2017 |
Funding
This work was supported by the Australian Research Council, the Government of the Russian Federation (Grant 074-U01), and the Russian Foundation for Basic Research (Grant 15-32-20866). The numerical calculation of topological phase transition was financially supported by Russian Science Foundation (Grant No.16-19-10538). A.P. acknowledges a support of the Russian President Grant (MK-8500.2016.2). A portion of this research was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. This material is based upon work supported by the Air Force Office of Scientific Research under award number FA2386-16-1-0002.
| Funders | Funder number |
|---|---|
| DOE Office of Science | |
| Air Force Office of Scientific Research | FA2386-16-1-0002 |
| Australian Research Council | |
| Russian Foundation for Basic Research | 15-32-20866 |
| Russian Science Foundation | MK-8500.2016.2 |
| Government Council on Grants, Russian Federation | 074-U01 |
Keywords
- edge states
- nanofabrication
- nanophotonics
- near-field microscopy
- topological photonics
