SB – PhD position on optical trapping in photonic crystal structures

A PhD student position is available at the Photonic crystal group in the Institute of Physics in the fields of optical tweezers and planar photonic crystals. Planar photonic crystals consist of 100 nanometer sized arrays of holes etched in a planar semiconductor waveguide. These structures allow the control of the electromagnetic field at the wavelength scale.

These structures can be designed in a way that a resonant optical field extends mainly outside of the dielectric medium and can be used to optically trap particles. A very strong feedback action of the trapped particle on the resonant trapping field is observed and gives rise to very specific physical properties of the optical trap.

The present and future activities of the group in this field cover concern a wide spectrum of topics from the trapping of particles in vacuum to applications in biophotonics involving optical trapping of viruses or bacteria and their interaction with e.g. antibiotics or bacteriophages.

The subject of the thesis will concern some theoretical but mainly experimental aspects with a special emphasis on one specific point such as processing, optical measurements or photonic crystal structure design. Prior knowledge or a strong interest for at least one of the following topics is a prerequisite : photonic crystal, optical trapping, experimental lab work in optics, semiconductor processing, microfluidics.

Starting date : April 2021, duration 4 years.

For more information on:

 For more information or to send application :

Romuald Houdré

Institut de Physique

FSB, Station 3, EPFL, CH 1015, Lausanne, Switzerland

[email protected], Tel: +41 21 693 54 87