Title

Terahertz analysis of quinacridone pigments

RIS ID

110807

Publication Details

Squires, A. D., Kelly, M. & Lewis, R. A. (2017). Terahertz analysis of quinacridone pigments. Journal of Infrared, Millimeter and Terahertz Waves, 38 (3), 314-324.

Abstract

We present terahertz spectroscopy and analysis of two commercially available quinacridone pigments in the 0.5-4.5 THz range. Our results show a clear distinction between quinacridone red and magenta pigments. We reveal four definite absorptions in the terahertz regime common to both pigments, but offset between the pigments by ∼ 0.2 THz. The lowest-energy line in each pigment is observed to increase in frequency by ∼ 0.1 THz as the temperature is reduced from 300 to 12 K.

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Link to publisher version (DOI)

http://dx.doi.org/10.1007/s10762-016-0333-2