ELFT HÍRADÓ

[Szeminárium koordinátor <sem-admin AT szfki.hu>]

SZFI SeminarVirginie NazabalUniversity of Rennes (host: Jóvári Pál)Amorphous 
chalcogenides for infrared sensingTuesday, 1 October 2024, 10:00, KFKI 
Campus, Bldg. 1, 2nd floor, Conference RoomThe sensor development for in situ 
detection of organic molecules in water using an optical method is a broad 
environmental challenge. Chalcogenide glasses have attracted attention for 
sensing applications due to their high transparency in the infrared range, 
their ability to be fabricated into thin films by PVD and to be processed 
into integrated photonic components by photolithography and etching. We will 
present the development of a chalcogenide-based mid-infrared platform 
dedicated to mid-infrared spectroscopy using evanescent waves. The choice of 
the chalcogenide glass composition, the synthesis of chalcogenide films by RF 
magnetron sputtering, the structural, morphological, topographic and optical 
characterization of the thin films, the patterning of the films using 
photolithography and reactive ion etching, the optical losses and the surface 
functionalization by a hydrophobic polymer of the chalcogenide thin films 
will be presented. This study represents a step towards the development of an 
optical sensor in the MIR spectral range using chalcogenide materials for the 
detection of organic molecules in water. Minden érdeklődőt szívesen 
látunk! - Everyone is welcome to attend.Attila Nagysem-admin AT szfki.hu