THz Frequency Quantification of Water Gradients in Drying Paper
Paper in 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.

Author

Irina Nefedova

Aalto University

Qiushuo Sun

University of Birmingham

Anis Moradikouchi

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Mariangela Baggio

Aalto University

Aleksi Tamminen

Aalto University

Juha Ala-Laurinaho

Aalto University

Emma MacPherson

The University of Warwick

Helena Rodilla

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Jan Stake

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Zachary Taylor

Aalto University

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,

Areas of Advance

Information and Communication Technology

Materials Science

Infrastructure

Kollberg Laboratory

Subject Categories

Other Materials Engineering

DOI

10.1109/IRMMW-THz46771.2020.9370572

More information

Latest update

5/6/2021 1