Quasioptical System for Corneal Sensing at 220-330 GHz: Design, Evaluation, and Ex Vivo Cornea Parameter Extraction

• Published in: IEEE transactions on terahertz science and technology Vol. 11; no. 2; pp. 135 - 149
• Main Authors: Tamminen, Aleksi, Palli, Samu-Ville, Ala-Laurinaho, Juha, Salkola, Mika, Raisanen, Antti V., Taylor, Zachary D.
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.03.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Apertures; Broadband; Coefficient of variation; Configuration management; Contact lenses; Cornea; Coupling; Couplings; Data analysis; Design parameters; Gaussian beams (optics); Lenses; Lighting; Mathematical analysis; Moisture content; Near fields; Optical surface waves; quasioptics; Radius of curvature; Ray tracing; Reflectivity; Simulation; Spherical waves; Submillimeter waves; Surface matching; Surface waves; Thickness; Wave fronts

The design, simulation, and characterization of a quasioptical system for submillimeter-wave quantification of corneal thickness and water content are presented. The optics operate in the 220-330 GHz band and are comprised of two, custom aspheric, biconvex lenses in a Gaussian beam telescope configu...