Nano-modeling of light beams using metamaterials
So-called metamaterial nanotips can be used instead of solid dielectric or layered (metal-covered) aperture-type tips of existing SNOMs. The replacement of the cantilever tip with a conical or planar sample of properly designed metamaterial allows the rather high transmittance of the wave beam impinging on the base of the nanotip from its base part. The high transmittance can be wide-band when the beam radiated from the apex is nearly λ/4 thick. In other metamaterial nanotips the very bright spot of nanometer size can be created. These modifications of the cantilever tips should enlarge the capacities of SNOMs.
Main publications
- C. Rockstuhl, C. R. Simovski, S. A. Tretyakov, F. Lederer, Metamaterial nanotips, Applied Physics Letters, Vol. 94, p. 116951(1-3), 2009.
- S. Mühlig, C. Rockstuhl, J. Pniewski, C.R. Simovski, S.A. Tretyakov, and F. Lederer, Three-dimensional metamaterial nanotips, Phys. Rev. B, Vol. 81, 075317(1-8), 2010.
- C. R. Simovski and O. Luukkonen, Tapered plasmonic waveguides with efficient and broadband field transmission, Optics Communications, Vol. 285, 3397-3402, 2012.
- I. S. Maksymov, A. R. Davoyan, A. E. Miroshnichenko, C. Simovski, P. Belov, Y. S. Kivshar, Multi-frequency tapered plasmonic nanoantennas, Optics Communications, Vol. 285, 821–825, 2012.
- A.E. Krasnok, C.R. Simovski, P.A. Belov, and Y.S. Kivshar, Superdirective dielectric nanoantenna, Nanoscale, vol. 7, 2014.