Abstract
It has been previously established [1] on a theoretical basis that a grating ruled on a nonlinear (Kerr) material and lighted with a T.E. polarized plane wave can have a bistable behavior inside a convenient range of incident power and incidence angle. We establish here that a similar phenomenon occurs for T.M. polarization [2] for which delocalized surface plasmons can be resonantly excited. We study here the merits of both surface plasmon resonance and guided wave resonance inside a corrugated waveguide to increase the local field and thus, to decrease the threshold intensity necessary for bistable operation.
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