Abstract
We report a resonant cavity Si photodiode grown by merged epitaxial lateral overgrowth. At a reverse bias of 5 V, the dark current was 2.7 pA and the bandwidth exceeded 34 GHz. The peak quantum efficiencies ranged from 42% at 704 nm to 31% at 836 nm. This is the highest speed reported for a Si p-i-n photodiode and the highest bandwidth-efficiency product for any Si-based photodetector.
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