Welcome to the Ritchie Group website!


We apply optical techniques to explore and exploit the way light interacts with matter. Our experiments include spectroscopic analysis of gases, photolysis, and reaction dynamics, as well as manipulation of colloidal systems using optical tweezers.

Information on MEDIXHALE (Medical Diagnostics Based on Exaled-Air Analysis with Laser Absorption Spectroscopy).


Dr. Luca Ciaffoni gave a talk at the International Association of Breath Research Summit in Vienna.

Dr. Luca Ciaffoni was awarded a prize for being one of the best speakers at the SUSDG meeting in Oxford. Dr. Michele Gianella and Katherine Manfred also presented at the meeting.

Congratulations to Nicholas Smith for winning a prize for one of the best Part II theses this year!


Recent Publications

Cavity-enhanced near-infrared laser absorption spectrometer for the measurement of acetonitrile in breath Michele Gianella and Grant A.D. Ritchie, Analytical Chemistry (2015) DOI: 10.1021/acs.analchem.5b01341

RF noise induced laser perturbation for improving the performance of non-resonant cavity enhanced absorption spectroscopy L. Ciaffoni, J. Couper, G. Hancock, R. Peverall, P. A. Robbins, G.A.D. Ritchie, Opt. Exp. (2014) DOI:10.1364/OE.22.017030