Abstract

In the field of nanophotonics, localized surface plasmon polaritons (LSPPs) are important physical phenomena. One of the most important an application will be nano-size circularly polarized light generated by nano-structures such as a cross aperture antenna [1]. An imaging technique with high spatial resolution is essential for the analysis and the evaluation of LSPPs. In this presentation, we report on a measurement of LSPPs in Au pattern structures by an apertureless scanning near-field optical microscopy (a-SNOM) with a high spatial resolution of about 10 nm.

© 2014 Japan Society of Applied Physics, Optical Society of America