Optical polarimetry for noninvasive glucose sensing enabled by Sagnac interferometry

Amy M. Winkler, Garret T. Bonnema, Jennifer K Barton

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Optical polarimetry is used in pharmaceutical drug testing and quality control for saccharide-containing products (juice, honey). More recently, it has been proposed as a method for noninvasive glucose sensing for diabetic patients. Sagnac interferometry is commonly used in optical gyroscopes, measuring minute Doppler shifts resulting from mechanical rotation. In this work, we demonstrate that Sagnac interferometers are also sensitive to optical rotation, or the rotation of linearly polarized light, and are therefore useful in optical polarimetry. Results from simulation and experiment show that Sagnac interferometers are advantageous in optical polarimetry as they are insensitive to net linear birefringence and alignment of polarization components.

Original languageEnglish (US)
Pages (from-to)2719-2731
Number of pages13
JournalApplied Optics
Volume50
Issue number17
DOIs
StatePublished - Jun 10 2011

Fingerprint

Polarimeters
polarimetry
Interferometry
glucose
Glucose
interferometry
Interferometers
optical gyroscopes
interferometers
Optical rotation
juices
Doppler effect
carbohydrates
Gyroscopes
Light polarization
quality control
Birefringence
Drug products
polarized light
Quality control

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Optical polarimetry for noninvasive glucose sensing enabled by Sagnac interferometry. / Winkler, Amy M.; Bonnema, Garret T.; Barton, Jennifer K.

In: Applied Optics, Vol. 50, No. 17, 10.06.2011, p. 2719-2731.

Research output: Contribution to journalArticle

Winkler, Amy M. ; Bonnema, Garret T. ; Barton, Jennifer K. / Optical polarimetry for noninvasive glucose sensing enabled by Sagnac interferometry. In: Applied Optics. 2011 ; Vol. 50, No. 17. pp. 2719-2731.
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