Resonant cavity-enhanced quantum-dot infrared photodetectors with guided-mode resonance reflector

摘要

We propose a resonant cavity-enhanced quantum-dot infrared photodetectors with a top mirror of Ge/SiO2 sub-wavelength grating. With a total thickness of ∼7.7 μm, the simulated maximum absorption is ∼60–70% at 8 μm with an enhancement factor of ∼6–20.