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Stefaan Janssens

Research Scientist

Temperature and Humidity

Areas of expertise

  • Fibre optic sensors
  • Experimental physics
  • Optics
  • Material Science


PhD in Physics at Victoria University of Wellington, 2012


Stefaan grew up in Belgium where he completed a Masters in Engineering Physics at Ghent University.  In 2008 he moved to New Zealand to start his PhD in Physics at Victoria University of Wellington. During this time he investigated new materials for all optical switching and amplification. After completion of his PhD in 2013, he started as a Research Scientist in the Advanced Materials group at Callaghan Innovation. Stefaan worked on a variety of projects ranging from the development of high resolution spectrographs to the characterisation of new materials.  He dedicated significant time on the development and characterisation of novel fibre optic humidity and temperature sensors.  Stefaan joined MSL in June 2021 as a research scientist in the temperature and humidity team.