Subwavelength Plasmonic Waveguides and Plasmonic Materials

Table 3

TM-mode size comparison for dielectric and plasmonic waveguides with 𝜆 = 1550 nm light. Data acquired from FDTD Solutions’s integrated mode solver (http://www.lumerical.com/).

Waveguide type	Dielectric	MIM	IMI	MI
Materials	Silicon	Silver, air	Silver, air	Silver, air
Core thickness	300 nm	30 nm	30 nm	—
Total cladding thickness	—	300 nm	300 nm	—
𝑛eff	2.5060	1.5788	2.7104	1.0039
Loss (dB/cm)	—	2180.5	846.5	44.0
FWHM (𝐻 intensity)	208 nm	46 nm	148 nm	983 nm