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Research interests

My research is focused on measurements of aerosol optical properties and how these relate to aerosol microphysical parameters. In particular, we concentrate on instrument design for both laboratory and field-based measurements of light interactions with aerosols, developing cavity ring-down and photoacoustic spectrometers for measuring aerosol-light interactions, either on aerosol ensembles (100s - 1000s of particles) or on single particles confined in an optical or electrodynamic trap. Supported through a NERC Independent Research Fellowship, my current efforts are in measuring the evolving optical properties of brown carbon aerosol - a major but poorly understood constituent of atmospheric aerosol.

Additionally, my research uses finite element modelling for photoacoustic cell design, developing new measurement approaches for characterising aerosol optical properties, modelling aerosol-light interactions in plane travelling and cavity standing wave fields, aerosol refractive index retrievals, and relating refractive index to particle composition and structure.


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