We define photonic nanopatterns of a sample as images recorded by scanning near-field optical microscopy with a locally excited electric dipole as a probe. This photonic nanopattern can be calculated by use of the Green’s dyadic technique. Here, we show that scanning near-field optical microscopy images of well-defined gold triangles taken with the tetrahedral tip as a probe show a close similarity to the photonic nanopattern of this nanostructure with an electric dipole at a distance of 15 nm to the sample and tilted 45° with respect to the scanning plane.
© 2002 Optical Society of America
(100.6640) Image processing : Superresolution
(110.2990) Imaging systems : Image formation theory
(180.5810) Microscopy : Scanning microscopy
(240.4350) Optics at surfaces : Nonlinear optics at surfaces
H. J. Maas, A. Naber, H. Fuchs, U. C. Fischer, J. C. Weeber, and A. Dereux, "Imaging of photonic nanopatterns by scanning near-field optical microscopy," J. Opt. Soc. Am. B 19, 1295-1300 (2002)