Open AccessFano-like resonance in an optically driven atomic force microscope cantilever
Author(s) -
Shahrul Kadri,
Hideki Fujiwara,
Keiji Sasaki
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.002317
Subject(s) - cantilever , fano resonance , resonance (particle physics) , optics , non contact atomic force microscopy , asymmetry , vibration , microscope , excitation , physics , materials science , microscopy , atomic physics , acoustics , kelvin probe force microscope , quantum mechanics , composite material , plasmon
We observe Fano-like resonance in the vibration spectrum of an optically driven atomic force microscope cantilever system. The vibration of the cantilever is photothermally induced by exciting it with a 780-nm laser diode. The asymmetry of the resonance curve strongly depends on the position of the excitation spot along the central axis of the cantilever. By using a simple physical model, we could extract and analyze the hidden resonance and continuous components in the vibration spectrum.