THz Frequency Quantification of Water Gradients in Drying Paper
Paper i proceeding, 2020
THz-reflection spectroscopy was used to extract time-varying water gradients in drying paper targets mounted on electrically thick dielectric substrates. The data showed a pronounced and prolonged drop below dry reflectivity when the water content that peaks at low weight (∼10%). A binomial distribution fitted to the acquired data confirms the existence of the time-varying water content gradient and suggests aqueous thin film hydration can be quantified even when the contrast between the film and backing material is low.
Författare
Irina Nefedova
Aalto-Yliopisto
Qiushuo Sun
University of Birmingham
Anis Moradikouchi
Chalmers, Mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik
Mariangela Baggio
Aalto-Yliopisto
Aleksi Tamminen
Aalto-Yliopisto
Juha Ala-Laurinaho
Aalto-Yliopisto
Emma MacPherson
The University of Warwick
Helena Rodilla
Chalmers, Mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik
Jan Stake
Chalmers, Mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik
Zachary Taylor
Aalto-Yliopisto
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
21622027 (ISSN) 21622035 (eISSN)
Vol. 2020-November 844-845 9370572
45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
Virtual, Buffalo, USA,
Virtual, Buffalo, USA,
Postdoc for terahertz imaging
GENIE, Chalmers jämställdhet för excellens, 2020-01-01 -- 2021-12-31.
Stiftelsen Chalmers tekniska högskola, 2020-01-01 -- 2021-12-31.
Styrkeområden
Informations- och kommunikationsteknik
Materialvetenskap
Infrastruktur
Kollberglaboratoriet
Ämneskategorier
Annan materialteknik
DOI
10.1109/IRMMW-THZ46771.2020.9370572