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Published January 1, 2006 | Published
Journal Article Open

Nanofluidic tuning of photonic crystal circuits


By integrating soft-lithography-based nanofluidics with silicon nanophotonics, we demonstrate dynamic, liquid-based addressing and high Delta n/n(~0.1) refractive index modulation of individual features within photonic structures at subwavelength length scales. We show ultracompact tunable spectral filtering through nanofluidic targeting of a single row of holes within a planar photonic crystal. We accomplished this with an optofluidic integration architecture comprising a nanophotonic layer, a nanofluidic delivery structure, and a microfluidic control engine. Variants of this technique could enable dynamic reconfiguration of photonic circuits, selective introduction of optical nonlinearities, or delivery of single molecules into resonant cavities for biodetection.

Additional Information

© 2006 Optical Society of America Received August 2, 2005; revised manuscript received September 15, 2005; accepted September 16, 2005 This work was supported by the Defense Advanced Research Projects Agency through the Center for Optofluidic Integration funded under the University Photonics Research program.

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Published - ERIol06.pdf


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August 22, 2023
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