In an evanescent wave sensor, a prism of refractive index 1.5 is used with illumination from a green laser (532 nm) to detect viruses of different sizes. What is the size of the smallest virus which can be completely sensed by this sensor?
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The very low refractive indexes of the core- cladding perfluorinated polymers (n = 1.35– 1.34) permit a strong ... Perfluorinated Plastic Optical Fiber Tapers for Evanescent Wave Sensing
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