Integrated Photonics for Mid-IR Biochemical Spectroscopy

04-06-2021 from 11:30 to 12:30
online via Teams
Kamal Kaur

The next NB-Photonics seminar will take place on 4th June at 11:30 am. Prof. James Wilkinson (Professor of Optoelectronics in the ORC) will give a talk on “Integrated Photonics for Mid-IR Biochemical Spectroscopy”.

James Wilkinson is a founder-member of the ORC. His research focusses on optical materials and devices for telecommunications and biosensing, including fluorescence immunosensors, Raman sensors and mid-IR waveguide spectroscopy aimed at point-of-care medical diagnostics. James is a Fellow of the IEEE and was a cofounder of UoS spin-out Mesophotonics Ltd, which first commercialised Klarite SERS chips.


Compact, low cost sensors which can be operated by non-specialist personnel are required for early diagnosis of disease and for water, food and environmental safety. The mid-infrared (MIR) region comprising wavelengths from 2 to 20 μm is ideal for direct biochemical analysis as this is where the fundamental molecular absorptions occur, yielding a molecular “fingerprint”. Waveguide evanescent field based MIR spectroscopy has the potential to offer high sensitivity and real-time measurement to identify and quantify species in complex mixtures, without the need for recognition labels. In this presentation, our recent progress on MIR waveguide evanescent spectroscopy will be discussed and the potential for future applications elaborated.

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