Combined THz and OCT characterization of biologically relevant tissue phantoms

Research output: Chapter in Book/Conference paperConference paper

Abstract

Terahertz (THz) imaging and optical coherence tomography (OCT) provide similar information over the same scales. Here, we present an iterative algorithm that combines the information from OCT and THz within an object to determine both the depth of the reflecting layers at different locations. Also, we can extract unknown refractive index of the object for both the OCT wavelengths and THz frequencies. We validate this algorithm using a phantom test object with embedded layers and show that the depths and refractive index values obtained from the algorithm agreed with the measured values to within 3%. We further demonstrate for the first time that OCT and THz images can be co-registered and aligned using unsupervised image registration. Hence, we show that a combined OCT/THz system can provide unique information beyond the capability of the separate modalities alone, with possible applications in the medical and industrial sectors.

Original languageEnglish
Title of host publication2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
Place of PublicationUSA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages1
ISBN (Electronic)9781728166209
DOIs
Publication statusPublished - 8 Nov 2020
Event45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020 - Virtual, Buffalo, United States
Duration: 8 Nov 202013 Nov 2020

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume2020-November
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
CountryUnited States
CityVirtual, Buffalo
Period8/11/2013/11/20

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