Abstract
Selecting nanocomposites for photonic switching applications requires optimizing their thermal, nonlinear, and two-photon absorption characteristics. The authors simplify this step by defining a compound figure of merit (FOMC) for nanocomposites of noble metals in dielectric based on criteria that limit these structures in photonic applications, i.e., thermal heating and two-photon absorption. The device independent results predict extremely large values of FOMC for a specific combination of the metal and insulator dielectric constants given by ϵh=(ϵ1−ϵ2)∕2, where ϵh is the dielectric constant of the host and ϵ1 and ϵ2 are the real and imaginary parts for the metal.
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