A Silicon-Based ROTE Sensor for High-Q and Label-Free Carcinoembryonic Antigen Detection
Luxiao Sang,
Haojie Liang,
Biao Zhao
et al.
Abstract:This paper presents a biosensor based on the resonant optical tunneling effect (ROTE) for detecting a carcinoembryonic antigen (CEA). In this design, sensing is accomplished through the interaction of the evanescent wave with the CEA immobilized on the sensor’s surface. When CEA binds to the anti-CEA, it alters the effective refractive index (RI) on the sensor’s surface, leading to shifts in wavelength. This shift can be identified through the cascade coupling of the FP cavity and ROTE cavity in the same mode.… Show more
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