Figure 2
From: Polarization-independent split bull’s eye antennas for infrared nano-photodetectors
Polarization dependence of transmission enhancement in SBE antennas.
(a) The transmission enhancement of SBE antennas versus the film thickness at λ = 1.31 μm with polarization angle Φ = 0° or 90°. (b) Transmission enhancement of SBE antennas at λ = 1.31, 2.0, 3.0, and 4.0 μm with polarization angle Φ = 0° or 90°. The corresponding film thicknesses h = 0.38, 0.64, 1.07, and 1.48 μm, respectively.
