  The plasmonic investigation involves activating a multilayer consisting of
silver, platinum, silica, and silicon. Hybrid waveguide and surface plasmon
polariton modes define the device plasmonic activity. The presence of
micrometric features on the multilayer surface facilitates the formation of the
waveguide mode. Moreover, they produce a transmitted signal that is associated
with localized surface plasmon resonance. A red dye adsorbed onto a multilayer
surface causes a strong coupling between excitons and polaritons. This coupling
increases the radiation force, and the dye-induced enhancement of radiation
force supports the use of passive chirality spectroscopy to measure the optical
forces acting on enantiomers. In conclusion, when a Kretschmann scheme is
combined with the de-polarization, a built-in asymmetry results in a different
optical flux of spectrum photons, resulting in distinct, enantioselective, and
solely polarization-dependent spectral contrast, and the enantioselectivity is
demonstrated for the D and L penicillamine.
