Fig. 5
a Schematic of FSPD with incident photons at angle θ. b At 1550 nm wavelength, absorptance as a function of the incident angle θ from 0° to 89°. Inset: magnified view with incident angles ranging from 43° to 44°. c Simulated absorptance of nanowires as a function of the incident photon wavelength with θ at 0°, 10°, 20°, 30°, 40°, and 43.48°