Complex refractive index determination of PTFE, TPX and polypropylene windows for TeraHertz broadband spectroscopy
- Bichon, J.
- Pillet, A.
- Sklia, A.
- Petitprez, D.
- Peretti, Romain
- Eliet, S.
Publication date
August 2022
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
International audienceWe perform TeraHertz characterization of three low-loss polymer candidates, i.e. polytetrafluoroethylene, polymethylpentene, and polypropylene, to choose the material with the proper opto-mechanical properties for aerosol and gas broadband spectroscopy cell windows. Samples are analyzed with the TeraHertz time domain spectroscopy technique. Then, the time-traces are fitted with theoretical models and the real and imaginary parts of their complex refractive indices are extracted using the Fit@TDS algorithm developed by Photonic TeraHertz team members
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