Freddy T. Nguyen, MD, PhD

Research Fellow @ Massachusetts Institute of Technology

Physician-scientist developing biophotonics and nano technologies for functional precision medicine to provide the right treatment to the right patient at the right time.

Needle-based refractive index measurement using low-coherence interferometry

Facebook
Twitter
LinkedIn
Pinterest
Email
Adam M. Zysk, Steven G. Adie, Julian J. Armstrong, Matthew S. Leigh, Alexandre Paduch, David D. Sampson, Freddy T. Nguyen, Stephen A. Boppart. Optics Letters 2007-02-15. Full Text
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.
Previous slide
Next slide

Related News and Publications