Details

Autor(en) / Beteiligte

• Gulkin, Dmitry N.
• Popkova, Anna A.
• Afinogenov, Boris I.
• Shilkin, Daniil A.
• Kuršelis, Kęstutis
• Chichkov, Boris N.
• Bessonov, Vladimir O.
• Fedyanin, Andrey A.

Titel

Mie-driven directional nanocoupler for Bloch surface wave photonic platform

Ist Teil von

• Nanophotonics (Berlin, Germany), 2021-09, Vol.10 (11), p.2939-2947

Ort / Verlag

Berlin: De Gruyter

Erscheinungsjahr

2021

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Modern integrated photonic platforms should combine low-loss guiding, spectral flexibility, high light confinement, and close packing of optical components. One of the prominent platforms represents a one-dimensional photonic crystal combined with dielectric nanostructures that manipulate low-loss Bloch surface waves (BSWs). Proper design of nanostructures gives rise to a variety of optical resonances suitable for efficient capturing and controlling light. In this work, we achieve color-selective directional excitation of BSWs mediated by Mie resonances in a semiconductor nanoparticle. We show that a single silicon nanoparticle can be used as a subwavelength multiplexer switching the BSW excitation direction from forward to backward within the 30 nm spectral range with its central wavelength governed by the nanoparticle size. Our work opens a route for the on-demand fabrication of photonic nanocouplers with tailored optical properties and submicron footprint.