Аннотация:filter comprising ten dielectric bilayers was inves-
tigated. Each bilayer is the thin films of silicone
dioxide (SiO2) and another film of zirconium diox-
ide (ZrO2). The surface of the multilayer film is
profiled. It has a form of periodic system of rectan-
gles separated by the open gaps. We use the com-
puter simulation as well as analytical solution to find
the reflectance of the multilayer as a function of the
wavelength and electromagnetic (em) field distribu-
tion. The multilayer system reveals the enhance-
ment of em fields at the surface. The considered
Bragg filter was modified by Raman-active structure
made of gold nanoparticles with chemically attached
3,3’-thio-bis (6-nitrobenzoic acid) — (TNB). The
high Surface Enhanced Raman Scattering (SERS)
signal was detected.
