Article

C-shaped nanoaperture-enhanced germanium photodetector

Center for Integrated Systems, Stanford University, Palo Alto, California, United States
Optics Letters (Impact Factor: 3.18). 06/2006; 31(10):1519-21. DOI: 10.1364/OL.31.001519
Source: PubMed

ABSTRACT We present a C-shaped nanoaperture-enhanced Ge photodetector that shows 2-5 times the photocurrent enhancement over that from a square aperture of the same area at 1310 nm wavelength. We demonstrate the polarization dependence of the C-aperture photodetector over a wide wavelength range. Our experimental observation agrees well with finite-difference time-domain simulation results.

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