High Sensitivity Optical Sensing Based on Modal Interferences in One-Dimensional Photonic Crystals
Keyword(s):
A one-dimensional photonic crystal supporting two modes is presented as an interferometric integrated optical sensor. The sensing is carried out by obtaining the phase difference between both modes propagated through the same nanometric structure and how it changes when a refractive index (RI) variation over the sensor takes place. Due to the slow-light phenomenon, high sensitivities values are reached near the photonic bandgap edge region. As a result, a high performance, compact, and single-channel optical sensing approach is theoretically calculated and demonstrated with a wide range of applications in the biosensing field.
2021 ◽
Vol ahead-of-print
(ahead-of-print)
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Keyword(s):
1993 ◽
Vol 28
(1)
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pp. 16-24
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2021 ◽
Keyword(s):
2010 ◽
Vol 82
(11)
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pp. 2185-2198
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2007 ◽
Keyword(s):