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Advances in Optical Coherence Tomography

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  • UserAdrian Podoleanu, University of Kent, Canterbury
  • ClockTuesday 09 May 2023, 14:00-15:00
  • HousePhysics West, W117.

If you have a question about this talk, please contact Yeshpal Singh.

The presentation will review technical perspectives of recent developments in optical sources and signal processing for optical coherence tomography (OCT) that with further refinements can be translated to better imaging relevant to medical imaging, biosciences and non destructive testing. The modern OCT technology for ophthalmology relies on spectral (Fourier)-domain OCT . I will introduce an OCT method that radically changes the operation of such technology, where the Fourier transform or equivalent is replaced by multiple electrical processing, with a processor for each optical path difference in the sample investigated. This opens opportunities to parallel processing, especially useful for ultra fast tuning lasers in swept source OCT configurations. To this end, I will present recent research on two technologies for ultra fast tuning lasers for fast acquisition of OCT data: dispersive cavity with dual resonance and time stretch configurations. These are akinetic solutions that promise to extend the sweeping rate of the optical frequency into the multi MHz range.

This talk is part of the Physics and Astronomy Colloquia series.

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