Optical trapping and manipulation of bacteria with photonic crystal devices

In monitoring the quality of drinking water with respect to the presence of hazardous bacteria, there is a strong need for in-line sensors that allow quick identification of bacterium species at low cost. Raman spectroscopy is a very promising label-free optical technique capable of discriminating bacteria species based on their molecular...

Optofluidics: A new tool for sensing

Over the last years optofluidics has emerged as a very promising field. The integration at microscopic level between optics and microfluidics provides a number of unique characteristics that cannot be obtained with solid materials only. This paper briefly reviews the state of the art on optofluidics for sensing applications. We first describe...

Optofluidics: Waveguides and devices

In this work we review recent results of our work on optofluidics. We show that single mode optofluidic waveguides with low loss can be realized using antiresonant reflecting optical confinement (ARROW). These waveguides can be fabricated using full standard silicon technology or hybrid silicon-polymer processes. ARROW waveguides have been used...

Liquid core integrated ring resonator

We report the design and the fabrication of an integrated optofluidic ring resonator based on liquid core antiresonant reflecting optical waveguide (ARROW) operating around ?=635nm with a water filled core (nc=1.33). This waveguide permits a strong coupling between light and analyte as the same microchannel can be used for delivering sample and...

Optofluidic microsystem for on-chip L2-waveguide modulation featuring flow stabilization and a novel input coupling region

We present an optofluidic microsystem integrated onto a single device featuring on-chip light guiding and positioning under stable and low-loss conditions. Integration of optical components onto a microfluidic chip offers numerous new possibilities in the field of particle and cell analysis, but reconfigurable on-chip light positioning is still...

Waveguide based optofluidics

Integrated liquid core AntiResonant Reflecting Optical Waveguide (ARROW) are used as basic component for the realization of complex optofluidic devices. Liquid core ARROW waveguides permit to confine the light in a low refractive index liquid core, by means of two high refractive index cladding layers designed to form a high reflectivity Fabry...