Introducing quasi-optical terahertz circular dichroism spectroscopy


  • Junyi Qui Queen Mary University of London, United Kingdom
  • Yang Zeng Queen Mary University of London, United Kingdom
  • Richard Pickersgill Queen Mary University of London, United Kingdom
  • Robert S. Donnan Queen Mary, University of London, United Kingdom
  • Oleksandr Ju. Sushko Igor Sikorsky Kyiv Polytechnic Institute, Ukraine
  • Bin Yang University of Chester, United Kingdom



sub-Terahertz, circular dichroism, absorption, protein structural change


A sub-Terahertz circular dichroism spectrometer is developed and built based on a vector network analyzer driven quasi-optical system at 220-325 GHz sub-THz frequency domain (VNA-CD). The main goal is to explore the potentially significant absorption features in THz signatures of aqueous protein samples.


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