Propagation of Terahertz Radiation in Porous Polymer and Ceramic Materials
Journal Article
·
· AIP Conference Proceedings
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218 (United States)
- Research and Technology Development Center, The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723 (United States)
In this work we investigate the propagation of terahertz radiation through polyurethane foam and porous alumina ceramics to understand the effects of structure on the optical properties of these materials at terahertz frequencies. A terahertz time domain system with a GaAs photoconductive emitter and a ZnTe electro-optic crystal was used to generate and detect the transmitted terahertz signal. Using the amplitude and phase characteristics of these signals, the thickness, index of refraction, and other physical and optical properties of the materials were determined.
- OSTI ID:
- 20655380
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 760; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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