Gradient-index optofluidic waveguide in polydimethylsiloxane

Gradient-index optofluidic waveguide in polydimethylsiloxane

We demonstrate a gradient-index (GRIN) optofluidic waveguide using polydimethylsiloxane cured with a radial variation of temperature. The waveguide wraps the microfluidic channel and the GRIN profile localizes the light around it, making the device suitable for evanescent sensing applications. The f...

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Veröffentlicht in:Applied Optics 2017-02, Vol.56 (4), p.1202-1206
Hauptverfasser: Odeh, Mutasem, Voort, Bob, Anjum, Arslan, Paredes, Bruna, Dimas, Clara, Dahlem, Marcus S
Format: Artikel
Sprache:eng
Schlagworte:
Channels
Confinement
Detection
Devices
Microfluidics
Wave propagation
Waveguides
Wavelengths
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Beschreibung
Zusammenfassung:We demonstrate a gradient-index (GRIN) optofluidic waveguide using polydimethylsiloxane cured with a radial variation of temperature. The waveguide wraps the microfluidic channel and the GRIN profile localizes the light around it, making the device suitable for evanescent sensing applications. The fabricated waveguide shows good light confinement, with a propagation loss of 1.47 dB/cm at a wavelength of 632.8 nm.
ISSN:0003-6935
1559-128X
2155-3165
1539-4522
DOI:10.1364/AO.56.001202