The Inaugural Lecture of Professor Yaochun Shen

5:15pm - 7:30pm / Tuesday 11th February 2020 / Venue: ELT, Room 101 Electrical Engineering & Electronics
Type: Lecture / Category: Department
  • Admission: Free event
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We are delighted to invite you all to join us for the Inaugural Lecture of Professor. Yaochun Shen on Tuesday 11th February.
Title of lecture: 'Seeing the unseen: infrared and terahertz 3D imaging for medical and industry applications'
The lecture will take place in the Department of Electrical Engineering and Electronics, ELT Room 101, and will commence at 5.15pm. Refreshments will be provided.

For further information and to register for free, please visit Eventbrite
We hope that you can join us to celebrate Professor. Shen’s achievement, and to hear his talk ‘Seeing the unseen: infrared and terahertz 3D imaging for medical and industry applications.’ (Abstract below)

Abstract:
With the publication of "A Dynamical Theory of the Electromagnetic Field" in 1865, Maxwell unified the theories of electromagnetism and optics. Maxwell's Equations, recognised as the "second great unification in physics" after the first one realised by Isaac Newton, underpin all modern information and communication technologies which is central to the increasingly important digital economy.
Our eyes are wondrous things, but they have fundamental limits: with naked eye we can only see visible light which represents a tiny portion of the broad electromagnetic spectrum. To extend human’s “seeing” capability, researchers have utilised electromagnetic radiation including microwave and X-ray to develop imaging technologies that enables people to see the unseen, for example, to see through and image optically opaque samples and concealed objects. Terahertz imaging is a new addition to these enabling imaging technology.The terahertz region of the electromagnetic spectrum spans the frequency range between the mid-infrared and the millimetre/microwave. Traditionally the exploitation of this terahertz region has been difficult owing to the lack of suitable source and detector. There has therefore been considerable interest in the development of THz technology as it has advantages of being non-ionizing, non-destructive, and able to image at depth. In the near-infrared region, optical coherence tomography has also proven to be a non-invasive and cross-sectional imaging technique that permits, for example, three-dimensional (3D) images with micrometre resolution to be obtained from within the retina of human eye.
In this inaugural lecture Professor Shen will walk through his journey in the development of terahertz and optical coherence tomography imaging technologies with a focus on their future industrial and medical applications.