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21 February 2020 Bloch long-range surface plasmons on waveguide arrays as multichannel biosensors
Maryam Khodami, Zohreh Hirbodvash, Oleksiy Krupin, Pierre Berini
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Proceedings Volume 11257, Plasmonics in Biology and Medicine XVII; 112570E (2020) https://doi.org/10.1117/12.2545076
Event: SPIE BiOS, 2020, San Francisco, California, United States
Abstract
Novel, cost-effective and label-free Bloch surface plasmon biosensors are presented in this work. The biosensor chip consists of Au waveguides on a truncated 1D photonic crystal supporting Bloch long range surface plasmons (LRSPs) to form an optical biosensor. Gratings capable of coupling perpendicularly incident Gaussian beams are employed as the input-output means. The waveguides are covered with a low index fluoropolymer, etched to form the microfluidic channels and wafer bonded to seal and enable side fluidic interfaces. The devices are fabricated using wafer-scale processes and are capable of multichannel multimodal biosensing. Similar sensitivities to LRSPPs in the corresponding fluoropolymer/solution system are expected with Bloch LRSPPs.
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Maryam Khodami, Zohreh Hirbodvash, Oleksiy Krupin, and Pierre Berini "Bloch long-range surface plasmons on waveguide arrays as multichannel biosensors", Proc. SPIE 11257, Plasmonics in Biology and Medicine XVII, 112570E (21 February 2020); https://doi.org/10.1117/12.2545076
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