Alignment sensitivity of a WR-3.4 band quasioptical system for corneal water content sensing

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

Abstract

A key barrier to clinical translation of THz reflection spectroscopy for corneal sensing is alignment sensitivity. Typical quasioptical systems are optimized for ideal alignment conditions and are thus not robust to errors in position between the focused wave front and corneal surface. Patient eyes are under continuous movement and, therefore, it is necessary to understand measurement fidelity degradation under cases of poor alignment. These issues are explored, via physical-optics simulations and experiments, for a two-lens quasioptical system operating in the WR-3.4 band. The misalignment tolerance is stricter on the optical axis than on the transverse plane. A 0.1 mm misalignment on the optical axis results in significant thickness and the water content measurement uncertainty and suggest an adjunct alignment verification system is necessary for clinical translation.

Original languageEnglish
Title of host publication2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
PublisherIEEE
Pages63-64
Number of pages2
ISBN (Electronic)9781728166209
DOIs
Publication statusPublished - 8 Nov 2020
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Infrared, Millimeter, and Terahertz Waves - Virtual, Online, Buffalo, United States
Duration: 8 Nov 202013 Nov 2020
Conference number: 45

Publication series

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

Conference

ConferenceInternational Conference on Infrared, Millimeter, and Terahertz Waves
Abbreviated titleIRMMW-THz
CountryUnited States
CityBuffalo
Period08/11/202013/11/2020

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