Submillimeter-wave cornea phantom sensing over an extended depth of field with an axicon-generated Bessel beam

• Published in: arXiv.org
• Main Authors: Baggio, Mariangela, Tamminen, Aleksi, Lamberg, Joel, Grigorev, Roman, Samu-Ville Pälli, Ala-Laurinaho, Juha, Nefedova, Irina, Jean-Louis Bourges, Deng, Sophie X, Brown, Elliott R, Wallace, Vincent P, Taylor, Zachary D
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 26.02.2023
• Subjects: Backscattering; Beams (radiation); Cornea; Depth of field; Fused quartz; Gelatin; Lenses; Mathematical analysis; Moisture content; Parameter estimation; Permittivity; Physics - Medical Physics; Physics - Optics; Radius of curvature; Sidelobes; Submillimeter waves; Thickness

The feasibility of a 220 - 330 GHz zero order axicon generated Bessel beam for corneal water content was explored. Simulation and experimental data from the 25-degree cone angle hyperbolic-axicon lens illuminating metallic spherical targets demonstrate a monotonically decreasing, band integrated, ba...