Optical sensors are widely used for refractive index measurement in chemical, biomedical,
and food processing industries. Due to specific field distribution of the resonances, optical …

Since its first demonstration as a promising material for molecular detection two decades
ago, porous silicon (PSi) has become a commercially viable optical biosensor platform …

It is a remarkable and straightforward approach to customize the dispersion and nonlinear
properties of the photonic devices without varying the composition of the material by …

In this paper, a racetrack ring resonator design based on a subwavelength grating double
slot waveguide is presented. The proposed waveguide scheme is capable of confining the …

We propose a new type of self-referencing and multiplexed refractive index (RI) sensor
based on a compound optical microresonator structure consisting of Fabry-Pérot (FP) …

Photonic crystal (PhC) nanobeams (NB) patterned on porous silicon (PSi) waveguide
substrates are demonstrated for the specific, label-free detection of oligonucleotides. These …

A refractive index sensor based on all-grating racetrack resonators is proposed and
demonstrated in this paper. The structure consists of two subwavelength grating (SWG) …

Guided wave-optics has emerged as a promising platform for label free biosensing.
However, device sensitivity toward surface-bound small molecules is directly limited by the …

Direct laser writing (DLW) of mesoporous porous silicon (PS) films is shown to selectively
create spatially separated nitridized and carbonized features on a single film. Nitridized or …

Porous silicon (PSi) has been widely used as a biosensor in recent years due to its large
surface area and its optical properties. Most PSi biosensors consist in close-ended porous …