Photonic crystal resonator integrated in a microfluidic system

Pedro André Rodrigues de Sousa Nunes, Niels Asger Mortensen, Jörg Peter Kutter, Klaus Bo Mogensen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We report on a novel optofluidic system consisting of a silica-based 1D photonic crystal, integrated planar waveguides, and electrically insulated fluidic channels. An array of pillars in a microfluidic channel designed for electrochromatography is used as a resonator for on-column label-free refractive index detection. The resonator was fabricated in a silicon oxynitride platform, to support electro-osmotic flow, and operated at =1.55 m. Different aqueous solutions of ethanol with refractive indices ranging from n1.3330 to 1.3616 were pumped into the column/resonator, and the transmission spectra were recorded. Linear shifts of the resonant wavelengths yielded a maximum sensitivity of /n=480 nm/RIU (refractive index unit), and a minimum difference of n=0.007 RIU was measured.
Original languageEnglish
JournalOptics Letters
Volume33
Issue number14
Pages (from-to)1623-1625
ISSN0146-9592
DOIs
Publication statusPublished - 2008
Externally publishedYes

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resonators
photonics
refractivity
crystals
oxynitrides
fluidics
ethyl alcohol
platforms
silicon dioxide
aqueous solutions
waveguides
sensitivity
shift
silicon
wavelengths

Cite this

Rodrigues de Sousa Nunes, P. A., Mortensen, N. A., Kutter, J. P., & Mogensen, K. B. (2008). Photonic crystal resonator integrated in a microfluidic system. Optics Letters, 33(14), 1623-1625. https://doi.org/10.1364/OL.33.001623
Rodrigues de Sousa Nunes, Pedro André ; Mortensen, Niels Asger ; Kutter, Jörg Peter ; Mogensen, Klaus Bo. / Photonic crystal resonator integrated in a microfluidic system. In: Optics Letters. 2008 ; Vol. 33, No. 14. pp. 1623-1625.
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Rodrigues de Sousa Nunes, PA, Mortensen, NA, Kutter, JP & Mogensen, KB 2008, 'Photonic crystal resonator integrated in a microfluidic system', Optics Letters, vol. 33, no. 14, pp. 1623-1625. https://doi.org/10.1364/OL.33.001623

Photonic crystal resonator integrated in a microfluidic system. / Rodrigues de Sousa Nunes, Pedro André; Mortensen, Niels Asger; Kutter, Jörg Peter; Mogensen, Klaus Bo.

In: Optics Letters, Vol. 33, No. 14, 2008, p. 1623-1625.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Photonic crystal resonator integrated in a microfluidic system

AU - Rodrigues de Sousa Nunes, Pedro André

AU - Mortensen, Niels Asger

AU - Kutter, Jörg Peter

AU - Mogensen, Klaus Bo

PY - 2008

Y1 - 2008

N2 - We report on a novel optofluidic system consisting of a silica-based 1D photonic crystal, integrated planar waveguides, and electrically insulated fluidic channels. An array of pillars in a microfluidic channel designed for electrochromatography is used as a resonator for on-column label-free refractive index detection. The resonator was fabricated in a silicon oxynitride platform, to support electro-osmotic flow, and operated at =1.55 m. Different aqueous solutions of ethanol with refractive indices ranging from n1.3330 to 1.3616 were pumped into the column/resonator, and the transmission spectra were recorded. Linear shifts of the resonant wavelengths yielded a maximum sensitivity of /n=480 nm/RIU (refractive index unit), and a minimum difference of n=0.007 RIU was measured.

AB - We report on a novel optofluidic system consisting of a silica-based 1D photonic crystal, integrated planar waveguides, and electrically insulated fluidic channels. An array of pillars in a microfluidic channel designed for electrochromatography is used as a resonator for on-column label-free refractive index detection. The resonator was fabricated in a silicon oxynitride platform, to support electro-osmotic flow, and operated at =1.55 m. Different aqueous solutions of ethanol with refractive indices ranging from n1.3330 to 1.3616 were pumped into the column/resonator, and the transmission spectra were recorded. Linear shifts of the resonant wavelengths yielded a maximum sensitivity of /n=480 nm/RIU (refractive index unit), and a minimum difference of n=0.007 RIU was measured.

U2 - 10.1364/OL.33.001623

DO - 10.1364/OL.33.001623

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SP - 1623

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JF - Optics Letters

SN - 0146-9592

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