Murphy, K N; Markl, D; Nordon, A; Naftaly, M (2023) Observation of spurious spectral features in mixed-powder compressed pellets measured by terahertz time-domain spectroscopy. IEEE Transactions on Terahertz Science and Technology, 13 (5). pp. 569-572.

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Abstract

Spurious loss features were observed in mixed-powder compressed pellets measured in transmission using terahertz time-domain spectroscopy. Loss features were identified in two types of pellets: PTFE-glass microspheres and PTFE-lactose. The features were found to be dependent on grain size and concentration. An explanation is proposed, based on varying optical thickness of the sample material.

Item Type:	Article
Subjects:	Optical Radiation and Photonics > Materials and Appearance
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.1109/TTHz.2023.3290118
Last Modified:	08 Jan 2024 14:54
URI:	https://eprintspublications.npl.co.uk/id/eprint/9895