Fiber-optic Raman probe based on single-crystal sapphire fiber

Tongqing Liu, Ming Han, Cody Raml, Dennis R Alexander, Xiangnan He, Yongfeng Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We demonstrate a fiber-optic Raman probe based on single-crystal sapphire fibers to overcome the large background signal of Raman probes based on standard glass fibers. Using 514.5 nm and 785 nm excitation lasers, Raman spectroscopy was performed on samples of calcite, aqueous sodium carbonate solution, and silicon wafer using a single crystal sapphire fiber and a silica fiber of similar lengths and numerical apertures. The single-crystal sapphire fiber exhibits narrow Raman peaks and low background signal, allowing for the detection of weaker Raman signals or Raman signals located in the lower wavenumber region, while the traditional silica fiber has a strong broadband Raman spectrum of its own.

Original languageEnglish (US)
Title of host publicationNext-Generation Spectroscopic Technologies V
DOIs
StatePublished - Aug 1 2012
EventNext-Generation Spectroscopic Technologies V - Baltimore, MD, United States
Duration: Apr 23 2012Apr 24 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8374
ISSN (Print)0277-786X

Conference

ConferenceNext-Generation Spectroscopic Technologies V
CountryUnited States
CityBaltimore, MD
Period4/23/124/24/12

Fingerprint

Aluminum Oxide
Sapphire
Raman
Single Crystal
Fiber Optics
Fiber optics
fiber optics
sapphire
Probe
Single crystals
Fiber
fibers
Fibers
probes
single crystals
Silicon Dioxide
Silica
silicon dioxide
sodium carbonates
Laser excitation

Keywords

  • Raman
  • fiber optic sensors
  • sapphire fiber
  • spectroscopic instrumentation
  • spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Liu, T., Han, M., Raml, C., Alexander, D. R., He, X., & Lu, Y. (2012). Fiber-optic Raman probe based on single-crystal sapphire fiber. In Next-Generation Spectroscopic Technologies V [83740P] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8374). https://doi.org/10.1117/12.920780

Fiber-optic Raman probe based on single-crystal sapphire fiber. / Liu, Tongqing; Han, Ming; Raml, Cody; Alexander, Dennis R; He, Xiangnan; Lu, Yongfeng.

Next-Generation Spectroscopic Technologies V. 2012. 83740P (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8374).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Liu, T, Han, M, Raml, C, Alexander, DR, He, X & Lu, Y 2012, Fiber-optic Raman probe based on single-crystal sapphire fiber. in Next-Generation Spectroscopic Technologies V., 83740P, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8374, Next-Generation Spectroscopic Technologies V, Baltimore, MD, United States, 4/23/12. https://doi.org/10.1117/12.920780
Liu T, Han M, Raml C, Alexander DR, He X, Lu Y. Fiber-optic Raman probe based on single-crystal sapphire fiber. In Next-Generation Spectroscopic Technologies V. 2012. 83740P. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.920780
Liu, Tongqing ; Han, Ming ; Raml, Cody ; Alexander, Dennis R ; He, Xiangnan ; Lu, Yongfeng. / Fiber-optic Raman probe based on single-crystal sapphire fiber. Next-Generation Spectroscopic Technologies V. 2012. (Proceedings of SPIE - The International Society for Optical Engineering).
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