Tom Claes

TL;DR: An overview of the current state-of-the-art in silicon nanophotonic ring resonators is presented in this paper, where the basic theory of ring resonance is discussed and applied to the peculiarities of submicron silicon photonic wire waveguides: the small dimensions and tight bend radii, sensitivity to perturbations and the boundary conditions of the fabrication processes.

TL;DR: In this article, a slot waveguide-based ring resonator with a footprint of only 13 mum times 10 mum, fabricated with optical lithography, was presented for selective label-free sensing of proteins.

TL;DR: In this paper, an eight-fold length reduction of the coupling structure from fiber to photonic wire in SOI, as compared to a linear grating and adiabatic taper, is obtained, without performance penalty.

TL;DR: A refractive index sensor that consists of two cascaded ring resonators and that works analogously to a Vernier-scale is studied and formulas describing the sensor's operation are derived, and a fitting procedure is introduced that allows to accurately detect changes in the sensor response.

TL;DR: In this paper, the dependence of loss on wire width, wavelength, and cladding is discussed in detail, and it is shown that cladded multimode and singlemode waveguides show a loss well below 1 dB/cm in the 532-900 nm wavelength range.