Microcavity Silicon Photodetectors at 1.55 μm

Table 1

Optical and electrical properties for three metals: gold, silver, and copper.

Metal	Complex refractive index (N)	Mean free path (𝐿𝑒) [𝜇m]	Fermi level (𝐸𝐹) [eV]	Potential barrier (Φ𝐵) [eV]
Au	0.174–j9.960	0.055	5.530	0.780
Ag	0.450–j9.290	0.057	5.480	0.780
Cu	0.145–j9.830	0.045	7.050	0.580