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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 9 — Mar. 20, 2009
  • pp: 1683–1696

Improvement and analysis of a micro Raman probe

Yuichi Komachi, Takashi Katagiri, Hidetoshi Sato, and Hideo Tashiro  »View Author Affiliations


Applied Optics, Vol. 48, Issue 9, pp. 1683-1696 (2009)
http://dx.doi.org/10.1364/AO.48.001683


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Abstract

A micro Raman probe (MRP) with a 600 μm diameter, which we previously reported as the narrowest achieved to date, was further improved by introducing high-quality optical filters and a collecting lens at the tip. We fabricated the MRP with a high collection efficiency, a wider collection wavelength, and a high signal-to-noise ratio. We compared two types of probes: one with a lens-tipped end and one with a flat tip. We experimentally tested the performance of these MRPs to evaluate the detection properties defined by parameters such as the optical purity against inherent Raman background noise due to optical fibers, the sensitivity, and the viewing area. Finally, we demonstrated their effectiveness in mea surements of standard Raman samples and applied them to measurements of plastic and human skin samples in situ.

© 2009 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine
(170.5660) Medical optics and biotechnology : Raman spectroscopy
(300.6450) Spectroscopy : Spectroscopy, Raman

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 21, 2008
Revised Manuscript: December 15, 2008
Manuscript Accepted: February 23, 2009
Published: March 13, 2009

Virtual Issues
Vol. 4, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Yuichi Komachi, Takashi Katagiri, Hidetoshi Sato, and Hideo Tashiro, "Improvement and analysis of a micro Raman probe," Appl. Opt. 48, 1683-1696 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-9-1683

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