title: Multifrequency high-speed phase-modulation atomic force microscopy in liquids.
abstract: We have developed a new technique, called multifrequency high-speed phase-modulation atomic force microscopy (PM-AFM) in constant-amplitude (CA) mode based on the simultaneous excitation of the first two flexural modes of a cantilever. By performing a theoretical investigation, we have found that this technique enables the simultaneous imaging of the surface topography, energy dissipation and elasticity (nonlinear mapping) of materials. We experimentally demonstrated high-speed imaging at a scan speed of 5 frames/s for a polystyrene (PS) and polyisobutylene (PIB) polymer-blend thin-film surface in water.
authors.affiliation: Department of Applied Physics, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan. liyanjun@ap.eng.osaka-u.ac.jp
authors.forename: Yan Jun
authors.initials: YJ
authors.lastname: Li
authors.forename: Kouhei
authors.initials: K
authors.lastname: Takahashi
authors.forename: Naritaka
authors.initials: N
authors.lastname: Kobayashi
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Naitoh
authors.forename: Masami
authors.initials: M
authors.lastname: Kageshima
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Sugawara