Subwavelength Plasmonic Waveguides and Plasmonic Materials

Table 1

Plasmonic frequencies and damping factors for Al, Au, Cu, and Al in NIR spectrum [12].

Material	𝑓𝑝 (THz)	𝛾𝜏 (THz)
Aluminum	3570	19.79
Gold	2183	6.46
Copper	1914	8.34
Silver	2180	4.353