THz frequency, Goniometric scanning system for human cornea using off-axis parabolic mirrors

Conference Paper (2021)
Author(s)

Yong Hu (UCLA)

Mariangela Baggio (Aalto University)

Aleksi Tamminen (Aalto University)

Juha Ala-laurinaho (Aalto University)

Elliott Brown (Wright State University)

S. O. Dabironezare (TU Delft - Tera-Hertz Sensing)

Nuria Llombart (TU Delft - Tera-Hertz Sensing)

Sophie X. Deng (UCLA)

Vincent Wallace (University of Western Australia)

Zachary D. Taylor (Aalto University)

Research Group
Tera-Hertz Sensing
DOI related publication
https://doi.org/10.1109/IRMMW-THz50926.2021.9567415
More Info
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Publication Year
2021
Language
English
Research Group
Tera-Hertz Sensing
ISBN (print)
978-1-7281-9425-7
ISBN (electronic)
978-1-7281-9424-0

Abstract

An efficient method for rapid, non-contact scanning of human cornea is presented. The optics utilize two, 101.6-mm diameter off-axis parabolic mirrors fed by a goniometrically scanned, planar mirror. An evaluation system at 650 GHz was built and demonstrated ~ 1.5 mm beam radius on target and ~ 30
o x 30
o field of view. The system was inspired by confocal laser scanning principles and represents a system design where image acquisition time is limited by SNR, not mechanical translation.

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