THz hydration sensitivity: Dielectric substrate window considerations

James Garritano, Shijun Sung, Neha Bajwa, Bryan Nowroozi, Warren Grundfest, Zachary D. Taylor

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Variations in water volume fraction have been investigated as a possible source of contrast in several reflective THz medical imaging applications including corneal hydration sensing and burn wound severity diagnosis. Due to surface roughness and non-planar geometry most reflective systems employ low loss windows such as quartz or sapphire to minimize the effects of the specimen's topology. This creates a multilayer system consisting of the dielectric substrate window between the tissue medium and free space. Multilayer systems have interference effects due to internal reflections that vary periodically with frequency. To investigate the effects of interference on THz hydration sensing, we implemented an electromagnetic model that computes sensitivity metrics given a window index, window thickness, and incidence angle.

Original languageEnglish
Title of host publication2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479931200
DOIs
StatePublished - 16 Oct 2014
Externally publishedYes
Event2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014 - Boulder, United States
Duration: 8 Jan 201411 Jan 2014

Publication series

Name2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014

Conference

Conference2014 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2014
Country/TerritoryUnited States
CityBoulder
Period8/01/1411/01/14

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