My research is in the area of acoustics, primarily focused on biomedical acoustics with applications in both diagnostics and therapeutics. My interests in photonics lie in acousto-optic sensing, which have so far been applied to thermally induced lesions in tissue. A high power transducer is used to both heat the tissue and also effect an AO modulation on the illumination from an Nd-YAG laser. The diffuse light is collected by a lens and a photo-refractive crystal is employed to select the modulated photons. I am now looking to extend the AO sensing for the detection of other pathologies that have optical contrast. We are also working on contrast agents that are activated by both light and sound.
My research is focused on rotary molecular motors, in particular the Bacterial Flagellar Motor, which is a rotary molecular engine powered by the flow of ions across the inner, or cytoplasmic, membrane of a bacterial cell envelope.