Research Fellow @ Massachusetts Institute of Technology, Resident Physician @ Mount Sinai Hospital

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. 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.
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Physician-scientist with extensive experience developing and translating nanotechnologies and biomedical optical technologies from the bench to clinic in areas of genetics, oncology, and cardiovascular diseases. Extensive experience in community building in healthcare innovation, research, medical, and physician-scientist communities through various leadership roles.

Email: freddytn@mit.edu

Arnold O. Beckman Postdoctoral Fellow
Institute for Medical Engineering and Science

Research Fellow, MIT Innovation Initiative
Former Co-Director, MIT Hacking Medicine
Regional Director – Europe, MIT Hacking Medicine
Co-Director, MIT COVID-19 Challenge
Co-Director, MIT Hacking Racism Challenge

Massachusetts Institute of Technology
77 Massachusetts Avenue
Cambridge, MA 02139

Email: freddy.nguyen@mountsinai.org

Resident Physician, PGY-3,
Department of Pathology, Molecular and Cell-Based Medicine

Icahn School of Medicine at Mount Sinai
Mount Sinai Hospital
One Gustave L. Levy Place, Box 1194
New York, NY 10029