
294 Communication Architectures for SoC
FIGURE 7.34
Scheme of the particular configurations for a photodetector based on surface
plasmon antennas presented in works (a) [109] and (b) [111].
a wide bandwidth. On the other hand, the main characteristic of the C-shaped
configuration [109] is its size. It has a volume of ∼ 150 nm × 60 nm × 80 nm
with an active volume that is ∼ 10
−4
λ
3
, being probably the smallest pho-
todetector recently manufactured. Other important feature that both devices
share is their polarization dependence. Their shapes are mainly anisotropic.
Then, the polarization of the incident field is quite important producing pho-
tocurrents