Open AccessUltrafast all-optical switching in the presence of Bloch surface waves
Author(s) -
Andrey A. Fedyanin,
Aleksandr A. Chezhegov,
И. В. Соболева,
Maxim Rybin,
E. D. Obraztsova,
Vladimir O. Bessonov,
Andrey A. Fedyanin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1461/1/012134
Subject(s) - excitation , nanophotonics , photonic crystal , ultrashort pulse , excited state , graphene , photonics , materials science , dielectric , optoelectronics , bloch oscillations , surface wave , optics , physics , nanotechnology , superlattice , atomic physics , laser , quantum mechanics
It is commonly known that Bloch surface waves (BSW) can be excited at the photonic crystal/dielectric boundary that leads to many features attractive for application these states as the basis of sensors and nanophotonic devices. The narrow spectral-angular resonance of BSW is very sensitive to properties of top layer and surrounding medium. There are few ways to enhance nonlinear optical response of a top layer without violation of BSW excitation conditions. In this work we choose graphene monolayer as a source of strong nonlinearity with tiny thickness. We study temporal nonlinear optical response of graphene in the case of Bloch surface waves excitation revealing subpicosecond switching time of probe dynamics.