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| Title:
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Refractive index sensor based on a 1D photonic crystal in a microfluidic channel |
| Type:
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Journal articleJournal article |
| Participant(s):
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Technical University of Denmark
Technical University of Denmark
Email:
Technical University of Denmark
Email:
Technical University of Denmark
Email:
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| Abstract:
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A refractive index sensor has been fabricated in silicon oxynitride by standard UV lithography and dry etching processes. The refractive index sensor consists of a 1D photonic crystal (PhC) embedded in a microfluidic channel addressed by fiber-terminated planar waveguides. Experimental demonstrations performed with several ethanol solutions ranging from a purity of 96.00% (n = 1.36356) to 95.04% (n = 1.36377) yielded a sensitivity (Δλ/Δn) of 836 nm/RIU and a limit of detection (LOD) of 6 x 10-5 RIU, which is, however, still one order of magnitude higher than the theoretical lower limit of the limit of detection 1.3 x 10–6 RIU. |
| Published:
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in journal: Sensors (ISSN: 1424-8220) (DOI: http://dx.doi.org/10.3390/s100302348), vol: 10, issue: 3, pages: 2348-2358, 2010 |
| DOI:
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