Magnetooptical surface plasmon resonance sensor based on dielectric Bragg mirror with metal cover

We present a novel type of the surface plasmon resonance sensor that is based on the magnetophotonic plasmonic heterostructure. The sensitivity of such sensor is enhanced by several orders of magnitude due to the excitation of the ultralong-range propagating surface plasmon polaritons in specially designed 1D photonic crystal coated with a magnetic layer. The sensing process was experimentally demonstrated for different concentrations of ethanol vapors in air.