Work

Observation of Spurious Spectral Features in Mixed-Powder Compressed Pellets Measured by Terahertz Time-Domain Spectroscopy

Year: 2023

Type: article

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 particle size and concentration. An explanation is proposed, based on varying optical thickness of the sample material.

Source: IEEE Transactions on Terahertz Science and Technology

DOI: 10.1109/tthz.2023.3290118

Authors: Keir N Murphy, Daniel Markl, Alison Nordon, Mira Naftaly

Institutions: University of Strathclyde, National Physical Laboratory

Language: English

Topic: Terahertz technology and applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: Higher Education Funding Council for England, Engineering and Physical Sciences Research Council, National Physical Laboratory

Awards: Pressure-dependent In-Situ Monitoring of Granular Materials, G46910443, G8264015855