By exploiting the excitation of a Bloch surface wave at a wavelength =670 nm, we observe a diffraction enhancement of more than 45 times from a rabbit IgG protein grating printed on a-SiN:H multilayers. Our results demonstrate that the use of surface states in dielectric multilayers is very promising for the realization of the next generation of diffraction-based biosensors.
Demonstration of difffraction enhancement via Bloch surface waves in a-SiN:H multilayers
LISCIDINI, MARCO;GALLI, MATTEO;PATRINI, MADDALENA;
2009-01-01
Abstract
By exploiting the excitation of a Bloch surface wave at a wavelength =670 nm, we observe a diffraction enhancement of more than 45 times from a rabbit IgG protein grating printed on a-SiN:H multilayers. Our results demonstrate that the use of surface states in dielectric multilayers is very promising for the realization of the next generation of diffraction-based biosensors.File in questo prodotto:
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