We report a demonstration of near-field nanoimaging using nanoscale photodetector (NPD) array. The NPD array has detector pixels with subwavelength dimension and is capable of pixel addressing. An active-media finite-difference time-domain simulation of the NPD array shows an imaging resolution of for light. Additionally, we demonstrate the realization and characterization of the NPD array. The smallest NPD array obtained has 100-nm-wide pixels with spacing. A responsivity of at and bias is registered for a NPD array pixel. The corresponding photocurrent is with a dark current of . Using near-field photocurrent microscopy, an imaging resolution of has been demonstrated.
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