Phenomenology of Passive Broadband Terahertz Images

Published

February 15, 2006

Author(s)

Charles Dietlein, A. Luukanen, Francois Meyer, Zoya Popovic, Erich N. Grossman

Abstract

Images acquired by a 105-mK noise equivalent temperature difference (NETD) scanned single-pixel broadband 0.1-1 THz passive system are analyzed with two specific parameters of interest in mind. First, the minimum system noise level for clothing feature extraction and concealed weapons detection is determined empirically by measuring the temperature differences created by clothing folds/ripples and ceramic/metallic weapons, and adding specific levels of noise to the image. Second, the effective spatial resolution of the images is found by examining the transition between temperature regions throughout the scene and finding the effective frequency of operation via theoretical edge diffraction.

Proceedings Title

ESA Workshop on Millimetre-wave Technology and Applications

Conference Dates

February 15-17, 2006

Conference Location

Espoo, 1, FI

Pub Type

Conferences

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Keywords

effective spatial resolution, feature detection, passive imaging, superconducting, terahertz

Citation

Dietlein, C. , Luukanen, A. , Meyer, F. , Popovic, Z. and Grossman, E. (2006), Phenomenology of Passive Broadband Terahertz Images, ESA Workshop on Millimetre-wave Technology and Applications, Espoo, 1, FI, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32225 (Accessed October 17, 2025)