Toward Photonic Nanojet Imaging for Microscopy

We present numerical computation of back-reflected fields resulting from the interaction of 2D and 3D photonic jets with planar air-silicon interfaces. The photonic jets are generated by a plane wave-illuminated glass ball (3D) and cylinder (2D) in the presence of a silicon substrate. Our results are applicable in the use of photonic jets as highly focused probes in far-field optical microscopy.