D. A. B. Miller, A. K. Okyay, J. A. Matteo, Y. Yuen, K. C. Saraswat, and
L. Hesselink, "C-shaped nanoaperture-enhanced germanium photodetector,"
Opt. Lett. 31, 1519-1521 (2006)
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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