
Dr Ian Lindsay
B.Sc.(Birm.), M.Sc.(R'dg), Ph.D.(St.And.)
Current positions
Teaching and Training Fellow in the Bristol Centre for Functional Nanomaterials
School of Physics
Contact
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Research interests
Ian has been awarded a Marie Curie European Reintegration Grant to support his research into localised infrared spectroscopy of nanostructured materials. These grants are awarded to researchers who have previously carried out a Marie Curie fellowship in another EU member state and the award will provide additional support to the EPSRC Advanced Research Fellowship that brought Ian to Bristol in October 2007.
While infrared spectroscopy is a well established method for determining parameters such as chemical composition and molecular structure, it cannot be readily applied to individual nanostructures as the diffraction-limited spatial resolution with infrared light is typically several microns. This limit can be overcome by using a the metallised probe tip of an atomic force microscope to act as a "nano-antenna" allowing the near-field around individual nanostructures to be probed with a spatial resolution of 10nm or less. Such techniques, however, have been limited in their application to true spectroscopy by the lack of infrared lasers capable of tuning over wide spectral ranges.
Ian's research aims to address this problem through the application of optical parametric oscillators, laser-like sources based on nonlinear optical interactions, to existing near-field optical techniques. Such an approach will, it is intended, provide techniques which allow the interplay between nanostructuring of materials and localised chemical properties to be investigated in unprecedented detail offering new insights into the properties of materials such as block-copolymers and self-assembling protein fibrils.
Projects and supervisions
Research projects
NANOSCALE CHEMICAL IMAGING: TOOLS AND TECHNIQUES FOR LOCALISED INFRARED SPECTROSCOPY OF NANOSTRUCTURED POLYMERS AND BIOMATERIALS
Principal Investigator
Managing organisational unit
School of PhysicsDates
01/10/2007 to 01/04/2013
Thesis supervisions
Publications
Recent publications
06/06/2022An Analysis of Semicircular Channel Backscattering Interferometry Through Ray Tracing Simulations
Sensors
Measuring the Refractive Index and Sub-Nanometre Surface Functionalisation of Nanoparticles in Suspension
Nanoscale
Shedding Light on Capillary-Based Backscattering Interferometry
Sensors
Prospective on using fibre mid-infrared supercontinuum laser sources for in vivo spectral discrimination of disease
Analyst