title: Multi-wavelength heterodyne-detected scattering-type scanning near-field optical microscopy.
abstract: We report on the implementation of a scattering-type scanning near-field optical microscope based on a heterodyne detection scheme, which has the ability to record near-field optical images at multiple wavelengths simultaneously. It is used to map out local field distribution and to investigate the dispersion behavior of plasmon created by nanometer-scale metallic structures. It opens up an unprecedented opportunity to study nano-photonics.
authors.affiliation: Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsin-Chu 310, Taiwan, Republic of China.
authors.forename: Jen-You
authors.initials: JY
authors.lastname: Chu
authors.forename: Tien-Jen
authors.initials: TJ
authors.lastname: Wang
authors.forename: You-Chia
authors.initials: YC
authors.lastname: Chang
authors.forename: Ming-Wei
authors.initials: MW
authors.lastname: Lin
authors.forename: Jyi-Tyan
authors.initials: JT
authors.lastname: Yeh
authors.forename: Juen-Kai
authors.initials: JK
authors.lastname: Wang