Resonant cavities coupled to a single photonic crystal waveguide operating as a multi-channel sensor are reported. The transmission spectrum presents as many dips as there are cavities. Infiltration of a solvent shifts the resonance wavelengths.
© 2009 The Optical Society
E. Guillermain and P. M. Fauchet, "Multi-Channel Sensing with Resonant Microcavities Coupled to a Photonic Crystal Waveguide," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper JWA45.
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