Grating-incoupled waveguide-enhanced Raman sensor Article Swipe
Mohamed A. Ettabib
,
Bethany M. Bowden
,
Zhen Liu
,
Almudena Martí
,
Glenn Churchill
,
James C. Gates
,
Michalis N. Zervas
,
Philip N. Bartlett
,
James S. Wilkinson
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.1371/journal.pone.0284058
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.1371/journal.pone.0284058
We report a waveguide-enhanced Raman spectroscopy (WERS) platform with alignment-tolerant under-chip grating input coupling. The demonstration is based on a 100-nm thick planar (slab) tantalum pentoxide (Ta 2 O 5 ) waveguide and the use of benzyl alcohol (BnOH) and its deuterated form (d7- BnOH) as reference analytes. The use of grating couplers simplifies the WERS system by providing improved translational alignment tolerance, important for disposable chips, as well as contributing to improved Raman conversion efficiency. The use of non-volatile, non-toxic BnOH and d7-BnOH as chemical analytes results in easily observable shifts in the Raman vibration lines between the two forms, making them good candidates for calibrating Raman systems. The design and fabrication of the waveguide and grating couplers are described, and a discussion of further potential improvements in performance is presented.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1371/journal.pone.0284058
- OA Status
- gold
- Cited By
- 4
- References
- 36
- Related Works
- 10
- OpenAlex ID
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All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4385727919Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1371/journal.pone.0284058Digital Object Identifier
- Title
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Grating-incoupled waveguide-enhanced Raman sensorWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2023Year of publication
- Publication date
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2023-08-10Full publication date if available
- Authors
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Mohamed A. Ettabib, Bethany M. Bowden, Zhen Liu, Almudena Martí, Glenn Churchill, James C. Gates, Michalis N. Zervas, Philip N. Bartlett, James S. WilkinsonList of authors in order
- Landing page
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https://doi.org/10.1371/journal.pone.0284058Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1371/journal.pone.0284058Direct OA link when available
- Concepts
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Raman spectroscopy, Grating, Materials science, Waveguide, Optoelectronics, Optics, PhysicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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4Total citation count in OpenAlex
- Citations by year (recent)
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2025: 1, 2024: 2, 2023: 1Per-year citation counts (last 5 years)
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36Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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