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Spectroscopic analysis with a monolithic micro-structured microsphere fiber probe
Author(s): Stephen Holler; Bernadette Haig; Ryan Riviere; Marissa Vaccarelli; Michael J. Donovan; Maximillino Sobrero; Brett A. Miles; Martin A. Sanzari
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Paper Abstract

A microsphere-fiber probe used for spectroscopic analysis of material samples is presented. The monolithic structure is formed by melting the end of a section of optical fiber forming a bead at the distal end of the fiber. Light guided through the fiber and emerges from the sphere focusing to a point beyond the surface. Raman scattering is used to demonstrate the efficacy of the probe, which operates in a bidirectional manner efficiently collecting the scattered light, re-imaging it back into the waveguide, and transmitting it to a spectrometer for dispersion. The probe demonstrates an order of magnitude improvement over the spatial resolution conventional fiber probes. This improvement in spatial resolution and corresponding collection efficiency will aid in critical analyses such as cancer margin detection and material characterization.

Paper Details

Date Published: 10 May 2019
PDF: 9 pages
Proc. SPIE 11007, Advanced Environmental, Chemical, and Biological Sensing Technologies XV, 110070B (10 May 2019); doi: 10.1117/12.2524843
Show Author Affiliations
Stephen Holler, Fordham Univ. (United States)
Bernadette Haig, Fordham Univ. (United States)
Ryan Riviere, Fordham Univ. (United States)
Marissa Vaccarelli, Fordham Univ. (United States)
Michael J. Donovan, Icahn School of Medicine at Mount Sinai (United States)
Maximillino Sobrero, Mount Sinai School of Medicine (United States)
Brett A. Miles, Mount Sinai School of Medicine (United States)
Martin A. Sanzari, Fordham Univ. (United States)


Published in SPIE Proceedings Vol. 11007:
Advanced Environmental, Chemical, and Biological Sensing Technologies XV
Tuan Vo-Dinh, Editor(s)

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