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Proceedings Paper

Photo-induced forces on AFM cantilever by externally modulated laser
Author(s): Shahrul Kadri; Hideki Fujiwara; Keiji Sasaki
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Paper Abstract

The focus of this study is to demonstrate and investigate the influence of photo-induced forces on the dynamics of the AFM cantilever under externally amplitude modulated laser in an ambient condition. The excitation laser at 780 nm is modulated at 20 Hz to 60 kHz and focused on the AFM cantilever surface. The cantilever vibration is monitored by HeNe probe laser. We observed highly excited vibration of the cantilever at several kHz modulation frequencies regime and at around its mechanical resonance which correspond to photo-induced forces. In addition, we noticed asymmetric peak appears at the resonance vicinity.

Paper Details

Date Published: 23 November 2009
PDF: 4 pages
Proc. SPIE 7508, 2009 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications, 75081S (23 November 2009); doi: 10.1117/12.839932
Show Author Affiliations
Shahrul Kadri, Hokkaido Univ. (Japan)
Hideki Fujiwara, Hokkaido Univ. (Japan)
Keiji Sasaki, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 7508:
2009 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications
YanBiao Liao; Anbo Wang; Tingyun Wang; Yukihiro Ishii, Editor(s)

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