Micro-Lensed Negative-Curvature Fibre Probe for Raman Spectroscopy
We developed a novel miniature micro-lensed fibre probe for Raman spectroscopy. The fibre probe consists of a single negative-curvature fibre (NCF) and a spliced, cleaved, micro-lensed fibre cap. Using a single NCF, we minimized the Raman background generated from the silica and maintained the diame...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/24/8434 |
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| author | Karolina Milenko Stephanos Yerolatsitis Astrid Aksnes Dag Roar Hjelme James M. Stone |
| author_facet | Karolina Milenko Stephanos Yerolatsitis Astrid Aksnes Dag Roar Hjelme James M. Stone |
| author_sort | Karolina Milenko |
| collection | DOAJ |
| description | We developed a novel miniature micro-lensed fibre probe for Raman spectroscopy. The fibre probe consists of a single negative-curvature fibre (NCF) and a spliced, cleaved, micro-lensed fibre cap. Using a single NCF, we minimized the Raman background generated from the silica and maintained the diameter of the probe at less than 0.5 mm. In addition, the cap provided fibre closure by blocking the sample from entering the hollow parts of the fibre, enabling the use of the probe in in vivo applications. Moreover, the micro-lensed cap offered an improved collection efficiency (1.5-times increase) compared to a cleaved end-cap. The sensing capabilities of the micro-lensed probe were demonstrated by measuring different concentrations of glucose in aqueous solutions. |
| first_indexed | 2024-03-10T03:08:33Z |
| format | Article |
| id | doaj.art-47fb4b7cd6cb44d2b91cb9ac61ba978c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T03:08:33Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-47fb4b7cd6cb44d2b91cb9ac61ba978c2023-11-23T10:31:26ZengMDPI AGSensors1424-82202021-12-012124843410.3390/s21248434Micro-Lensed Negative-Curvature Fibre Probe for Raman SpectroscopyKarolina Milenko0Stephanos Yerolatsitis1Astrid Aksnes2Dag Roar Hjelme3James M. Stone4Department of Electronic Systems, Norwegian University of Science and Technology, O.S. Bragstads Plass 2b, 7034 Trondheim, NorwayDepartment of Physics, University of Bath, Bath BA2 7AY, UKDepartment of Electronic Systems, Norwegian University of Science and Technology, O.S. Bragstads Plass 2b, 7034 Trondheim, NorwayDepartment of Electronic Systems, Norwegian University of Science and Technology, O.S. Bragstads Plass 2b, 7034 Trondheim, NorwayDepartment of Physics, University of Bath, Bath BA2 7AY, UKWe developed a novel miniature micro-lensed fibre probe for Raman spectroscopy. The fibre probe consists of a single negative-curvature fibre (NCF) and a spliced, cleaved, micro-lensed fibre cap. Using a single NCF, we minimized the Raman background generated from the silica and maintained the diameter of the probe at less than 0.5 mm. In addition, the cap provided fibre closure by blocking the sample from entering the hollow parts of the fibre, enabling the use of the probe in in vivo applications. Moreover, the micro-lensed cap offered an improved collection efficiency (1.5-times increase) compared to a cleaved end-cap. The sensing capabilities of the micro-lensed probe were demonstrated by measuring different concentrations of glucose in aqueous solutions.https://www.mdpi.com/1424-8220/21/24/8434raman sensinghollow-core fibrefibre probe |
| spellingShingle | Karolina Milenko Stephanos Yerolatsitis Astrid Aksnes Dag Roar Hjelme James M. Stone Micro-Lensed Negative-Curvature Fibre Probe for Raman Spectroscopy Sensors raman sensing hollow-core fibre fibre probe |
| title | Micro-Lensed Negative-Curvature Fibre Probe for Raman Spectroscopy |
| title_full | Micro-Lensed Negative-Curvature Fibre Probe for Raman Spectroscopy |
| title_fullStr | Micro-Lensed Negative-Curvature Fibre Probe for Raman Spectroscopy |
| title_full_unstemmed | Micro-Lensed Negative-Curvature Fibre Probe for Raman Spectroscopy |
| title_short | Micro-Lensed Negative-Curvature Fibre Probe for Raman Spectroscopy |
| title_sort | micro lensed negative curvature fibre probe for raman spectroscopy |
| topic | raman sensing hollow-core fibre fibre probe |
| url | https://www.mdpi.com/1424-8220/21/24/8434 |
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