Refractive index measurement using single fiber reflectance spectroscopy

Xu U. Zhang, Dirk J. Faber, Anouk L. Post, Ton G. van Leeuwen, Henricus J. C. M. Sterenborg

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

A method using single fiber reflectance spectroscopy to measure the refractive indices of transparent and turbid media over a broad wavelength range is presented and tested. For transparent liquid samples, the accuracy is within 0.2%, and the accuracy increases with increasing wavelength. For liquid turbid media, the accuracy is within 0.3% and increases with decreasing wavelength. For solid turbid samples, such as human skin, the accuracy critically depends on the optical contact between the fiber and sample surface. It is demonstrated that this technique has the potential to measure refractive indices of biological tissue in vivo.
Original languageEnglish
Article numbere201900019
JournalJournal of biophotonics
Volume12
Issue number7
DOIs
Publication statusPublished - 1 Jul 2019
Externally publishedYes

Funding

This research was supported by the Netherlands Organization for Scientific Research (Technology Foundation NWO-TTW, iMIT-FIBER Grant No.12702).

FundersFunder number
Netherlands Organization for Scientific Research
Technology Foundation NWO-TTW12702

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