Terahertz analysis of quinacridone pigments

Authors

Andrew Squires, University of WollongongFollow
Madeleine T. Kelly, University of WollongongFollow
R A. Lewis, University of WollongongFollow

RIS ID

113513

Publication Details

Squires, A. D., Kelly, M. & Lewis, R. A. (2016). Terahertz analysis of quinacridone pigments. 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (pp. 1-2). IEEE.

Abstract

We present terahertz spectroscopy and analysis of commercially available quinacridone pigments in the 0-5 THz range. Our results show clear distinction between the β and γ crystalline phases responsible for the deep violet (β) to red (γ) colour pigments. We reveal a large number of absorptions in the terahertz regime shown to depend on the constituent phase as well as temperature.