Chalcogenide glass waveguides with paper-based fluidics for mid-infrared absorption spectroscopy
Chalcogenide glass waveguides with paper-based fluidics for mid-infrared absorption spectroscopy
We demonstrate the integration of paper fluidics with mid-infrared (MIR) chalcogenide waveguides to introduce liquid samples to the waveguide evanescent field for analysis. Spectroscopy of model analytes (water and isopropyl alcohol) having well-defined mid-IR absorptions, on a ZnSe rib waveguide fabricated on silicon, is demonstrated in the wavelength range of 2.6–3.7 μm, showing their O-H and C-H stretching absorptions. The results are compared with a theoretical waveguide model, achieving good agreement. It is concluded that the presence of paper in the evanescent field does not interfere with the waveguide measurements, opening up opportunities to combine low-cost paper-based fluidics and integrated photonic technologies.
2913-2916
Mittal, Vinita
fd5ee9dd-7770-416f-8f47-50ca158b39b0
Nedeljković, Miloš
b64e21c2-1b95-479d-a35c-3456dff8c796
Rowe, David
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Murugan, Ganapathy Senthil
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Wilkinson, James
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13 June 2018
Mittal, Vinita
fd5ee9dd-7770-416f-8f47-50ca158b39b0
Nedeljković, Miloš
b64e21c2-1b95-479d-a35c-3456dff8c796
Rowe, David
a0e0fe82-5e29-42b8-b370-5236a722f015
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Wilkinson, James
73483cf3-d9f2-4688-9b09-1c84257884ca
Mittal, Vinita, Nedeljković, Miloš, Rowe, David, Murugan, Ganapathy Senthil and Wilkinson, James
(2018)
Chalcogenide glass waveguides with paper-based fluidics for mid-infrared absorption spectroscopy.
Optics Letters, 43, .
(doi:10.1364/OL.43.002913).
Abstract
We demonstrate the integration of paper fluidics with mid-infrared (MIR) chalcogenide waveguides to introduce liquid samples to the waveguide evanescent field for analysis. Spectroscopy of model analytes (water and isopropyl alcohol) having well-defined mid-IR absorptions, on a ZnSe rib waveguide fabricated on silicon, is demonstrated in the wavelength range of 2.6–3.7 μm, showing their O-H and C-H stretching absorptions. The results are compared with a theoretical waveguide model, achieving good agreement. It is concluded that the presence of paper in the evanescent field does not interfere with the waveguide measurements, opening up opportunities to combine low-cost paper-based fluidics and integrated photonic technologies.
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Chalcogenide glass waveguides with paper-based fluidics for mid-infrared absorption spectroscopy
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Accepted/In Press date: 20 May 2018
e-pub ahead of print date: 13 June 2018
Published date: 13 June 2018
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Local EPrints ID: 421615
URI: http://eprints.soton.ac.uk/id/eprint/421615
ISSN: 0146-9592
PURE UUID: 752cd7af-b2b7-4906-9313-5483967c71b8
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Date deposited: 18 Jun 2018 16:30
Last modified: 16 Mar 2024 04:18
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Vinita Mittal
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