Peter Brookes Chambers

• MPhysics
• Characterisation of aerosol through particle position detection in optical tweezers

In this research project, potential methods for examining microscopic aerosol droplets will be explored. These have possible applications in cloud formation, pollution, and human health. Specific focus will be placed on measuring the size and refractive index of an aerosol droplet. Current methods for analysis are extremely costly, and not always precise; we aim to find a cheaper, more reliable alternative.

Possible solutions will be explored computationally, to develop an analysis technique which can then be tested in a laboratory: a droplet will be trapped in focused laser light (optical levitation), and the relevant properties measured (such as movement and scattered light). These measurements will then be used to verify the accuracy of the computational techniques.

Funding source: Newcastle University

Supervisor: Dr Toni Carruthers