Ultra-low background Raman sensing using a negative-curvature fibre and no distal optics

Stephanos Yerolatsitis, Fei Yu, Sarah McAughtrie, Michael George Tanner, Holly Fleming, James M. Stone, Colin J. Campbell, Tim A. Birks, Jonathan C. Knight

Research output: Contribution to journalArticle

Abstract

Measuring Raman spectra through an optical fibre is usually complicated by the high intrinsic Raman scatter of the fibre material. Common solutions such as the use of multiple fibres and distal optics are complex and bulky. We demonstrate the use of single novel hollow-core negative-curvature fibres (NCFs) for Raman and surface-enhanced Raman spectroscopy (SERS) sensing using no distal optics. The background Raman emission from the silica in the NCF was at least 1000× smaller than in a conventional solid fibre, while maintaining the same collection efficiency. We transmitted pump light from a 785-nm laser through the NCF, and we collected back the weak Raman spectra of different distal samples, demonstrating the fibre probe can be used for measurements of weak Raman and SERS signals that would otherwise overlap spectrally with the silica background. The lack of distal optics and consequent small probe diameter (<0.25 mm) enable applications that were not previously possible.

Original languageEnglish
Article numbere201800239
JournalJournal of Biophotonics
Volume12
Issue number3
Early online date23 Oct 2018
DOIs
Publication statusPublished - Mar 2019

Fingerprint

Raman Spectrum Analysis
Silicon Dioxide
Optics
curvature
optics
Optical Fibers
fibers
Fibers
Lasers
Light
Raman spectroscopy
Raman scattering
Raman spectra
silicon dioxide
Silica
probes
fiber optics
hollow
optical fibers
Optical fibers

Keywords

  • Raman fibre probe
  • Raman sensing
  • fibre fabrication
  • hollow-core fibre

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Yerolatsitis, S., Yu, F., McAughtrie, S., Tanner, M. G., Fleming, H., Stone, J. M., ... Knight, J. C. (2019). Ultra-low background Raman sensing using a negative-curvature fibre and no distal optics. Journal of Biophotonics, 12(3), [e201800239]. https://doi.org/10.1002/jbio.201800239
Yerolatsitis, Stephanos ; Yu, Fei ; McAughtrie, Sarah ; Tanner, Michael George ; Fleming, Holly ; Stone, James M. ; Campbell, Colin J. ; Birks, Tim A. ; Knight, Jonathan C. / Ultra-low background Raman sensing using a negative-curvature fibre and no distal optics. In: Journal of Biophotonics. 2019 ; Vol. 12, No. 3.
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abstract = "Measuring Raman spectra through an optical fibre is usually complicated by the high intrinsic Raman scatter of the fibre material. Common solutions such as the use of multiple fibres and distal optics are complex and bulky. We demonstrate the use of single novel hollow-core negative-curvature fibres (NCFs) for Raman and surface-enhanced Raman spectroscopy (SERS) sensing using no distal optics. The background Raman emission from the silica in the NCF was at least 1000× smaller than in a conventional solid fibre, while maintaining the same collection efficiency. We transmitted pump light from a 785-nm laser through the NCF, and we collected back the weak Raman spectra of different distal samples, demonstrating the fibre probe can be used for measurements of weak Raman and SERS signals that would otherwise overlap spectrally with the silica background. The lack of distal optics and consequent small probe diameter (<0.25 mm) enable applications that were not previously possible.",
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Yerolatsitis, S, Yu, F, McAughtrie, S, Tanner, MG, Fleming, H, Stone, JM, Campbell, CJ, Birks, TA & Knight, JC 2019, 'Ultra-low background Raman sensing using a negative-curvature fibre and no distal optics', Journal of Biophotonics, vol. 12, no. 3, e201800239. https://doi.org/10.1002/jbio.201800239

Ultra-low background Raman sensing using a negative-curvature fibre and no distal optics. / Yerolatsitis, Stephanos; Yu, Fei; McAughtrie, Sarah; Tanner, Michael George; Fleming, Holly; Stone, James M.; Campbell, Colin J.; Birks, Tim A.; Knight, Jonathan C.

In: Journal of Biophotonics, Vol. 12, No. 3, e201800239, 03.2019.

Research output: Contribution to journalArticle

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AU - Yerolatsitis, Stephanos

AU - Yu, Fei

AU - McAughtrie, Sarah

AU - Tanner, Michael George

AU - Fleming, Holly

AU - Stone, James M.

AU - Campbell, Colin J.

AU - Birks, Tim A.

AU - Knight, Jonathan C.

N1 - This article is protected by copyright. All rights reserved.

PY - 2019/3

Y1 - 2019/3

N2 - Measuring Raman spectra through an optical fibre is usually complicated by the high intrinsic Raman scatter of the fibre material. Common solutions such as the use of multiple fibres and distal optics are complex and bulky. We demonstrate the use of single novel hollow-core negative-curvature fibres (NCFs) for Raman and surface-enhanced Raman spectroscopy (SERS) sensing using no distal optics. The background Raman emission from the silica in the NCF was at least 1000× smaller than in a conventional solid fibre, while maintaining the same collection efficiency. We transmitted pump light from a 785-nm laser through the NCF, and we collected back the weak Raman spectra of different distal samples, demonstrating the fibre probe can be used for measurements of weak Raman and SERS signals that would otherwise overlap spectrally with the silica background. The lack of distal optics and consequent small probe diameter (<0.25 mm) enable applications that were not previously possible.

AB - Measuring Raman spectra through an optical fibre is usually complicated by the high intrinsic Raman scatter of the fibre material. Common solutions such as the use of multiple fibres and distal optics are complex and bulky. We demonstrate the use of single novel hollow-core negative-curvature fibres (NCFs) for Raman and surface-enhanced Raman spectroscopy (SERS) sensing using no distal optics. The background Raman emission from the silica in the NCF was at least 1000× smaller than in a conventional solid fibre, while maintaining the same collection efficiency. We transmitted pump light from a 785-nm laser through the NCF, and we collected back the weak Raman spectra of different distal samples, demonstrating the fibre probe can be used for measurements of weak Raman and SERS signals that would otherwise overlap spectrally with the silica background. The lack of distal optics and consequent small probe diameter (<0.25 mm) enable applications that were not previously possible.

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