High-contrast imaging of NiO nano-channels using a polarization near-field scanning optical microscope

摘要

We demonstrated the use of a polarization near-field scanning optical microscope (NSOM) with an aperture probe in illumination-collection (internal reflection) mode operation to obtain high-contrast images of very shallow NiO nano-channels. This was accomplished by measuring the polarization change (depolarization) due to the near-field interaction between the probe aperture and the nano-channel. The polarization NSOM is a promising tool for high-resolution optical detection of nanostructures.