Needle-based refractive index measurement using low-coherence interferometry

Adam M. Zysk, Steven G. Adie, Julian J. Armstrong, Matthew S. Leigh, Alexandre Paduch, David D. Sampson, Freddy T. Nguyen, Stephen A. Boppart

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

We present a novel needle-based device for the measurement of refractive index and scattering using low-coherence interferometry. Coupled to the sample arm of an optical coherence tomography system, the device detects the scattering response of, and optical path length through, a sample residing in a fixed-width channel. We report use of the device to make near-infrared measurements of tissues and materials with known optical properties. The device could be used to exploit the refractive index variations of tissue for medical and biological diagnostics accessible by needle insertion.

Original languageEnglish
Pages (from-to)385-387
Number of pages3
JournalOptics Letters
Volume32
Issue number4
DOIs
StatePublished - 15 Feb 2007
Externally publishedYes

Fingerprint

Dive into the research topics of 'Needle-based refractive index measurement using low-coherence interferometry'. Together they form a unique fingerprint.

Cite this