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Full-field optical coherence tomography-An educational setup for an undergraduate lab

Pieper, Kai; Latour, G.; Küchenmeister, J.; Bergmann, Antje; Dengler, R.; Rockstuhl, Carsten

Abstract:
Optical coherence tomography, or in short OCT, is a measurement technique established in the early 1990s for the non-invasive imaging of interfaces in the bulk of biological tissues or other samples. A full-field OCT setup is built from a microscope combined with a Michelson interferometer, where the mirror in one arm is replaced by the sample. Using white light, which is temporally partially coherent, interference fringes disclose the presence of an interface whenever the lengths of both interferometer arms are nearly equal. Scanning one arm allows for a volumetric reconstruction of all interfaces inside the sample. While the importance of OCT in medicine is indisputable, it is hard to teach students the basic aspects of such technology as most available setups tend to be rather complex. It is our purpose to present a fully functional full-field OCT setup that is stripped-down to its essential components and to promote its use in an undergraduate lab course. The contribution is complemented by a description of the basic theory necessary to understand the working principle of OCT.


Verlagsausgabe §
DOI: 10.5445/IR/1000127656
Veröffentlicht am 01.01.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Festkörperphysik (TFP)
Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 0002-9505, 0096-0322, 1943-2909
KITopen-ID: 1000127656
HGF-Programm 43.23.01 (POF III, LK 01) Advanced Optical Lithography+Microscopy
Erschienen in American journal of physics
Verlag American Association of Physics Teachers
Band 88
Heft 12
Seiten 1132-1139
Nachgewiesen in Web of Science
Scopus
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