Publicaties
Saturable photoexcited carrier refraction in graphene-covered on-chip waveguides Vrije Universiteit Brussel
Directional Coupler Based on Single-Crystal Diamond Waveguides Vrije Universiteit Brussel
Localized optical- quality doping of graphene on silicon waveguides through a TFSA- containing polymer matrix Vrije Universiteit Brussel Universiteit Gent
The use of graphene in optical and photonic applications has gained much attention in recent years. To maximize the exploitation of graphene's extraordinary optical properties, precise control over its Fermi level (e.g. by means of chemical doping) will be of vital importance. In this work, we show the usage of a versatile p-doping strategy based on the incorporation of bis(trifluoromethanesulfonyl)amide (TFSA), functioning as an active ...
Graphene's nonlinear-optical physics revealed through exponentially growing self-phase modulation Vrije Universiteit Brussel
Graphene is considered a record-performance nonlinear-optical material on the basis of numerous experiments. The observed strong nonlinear response ascribed to the refractive part of graphene's electronic third-order susceptibility χ (3) cannot, however, be explained using the relatively modest χ (3) value theoretically predicted for the 2D material. Here we solve this long-standing paradox and demonstrate that, rather than χ (3)-based ...
Power-flow-based design strategy for Bloch surface wave biosensors Vrije Universiteit Brussel
Opportunities for visible supercontinuum light generation in integrated diamond waveguides Vrije Universiteit Brussel
We numerically show the advantages of using diamond-on-insulator (DOI) waveguides to design compact supercontinuum (SC) light sources for the visible (VIS) wavelength range. We conclude that the DOI platform is more suitable than silicon nitride waveguides for tailoring the dispersion in such a way that a zero-dispersion wavelength (ZDW) is obtained in the VIS, as is required to achieve efficient VIS SC generation (SCG). After designing a DOI ...