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Proceedings Paper

Analysis of photothermally induced vibration in metal coated AFM cantilever
Author(s): Shahrul Kadri; Hideki Fujiwara; Keiji Sasaki
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Paper Abstract

We report the vibration reduction in the optically driven V-shaped AFM cantilever with 70 nm gold surface coating. The driving laser at 780 nm is intensity modulated at 1 kHz to 100 kHz and focused on the AFM cantilever surface. The cantilever vibration amplitude is monitored by HeNe probe laser. Two features are observed: high vibration amplitude of the cantilever (1) at several kHz modulation frequencies regime and (2) at around its mechanical resonance. In addition, we found that vibration at the resonance peak increases when the excitation spot is positioned farther from the free end of the cantilever.

Paper Details

Date Published: 20 May 2010
PDF: 6 pages
Proc. SPIE 7743, Southeast Asian International Advances in Micro/Nanotechnology, 774307 (20 May 2010); doi: 10.1117/12.861053
Show Author Affiliations
Shahrul Kadri, Hokkaido Univ. (Japan)
Hideki Fujiwara, Hokkaido Univ. (Japan)
Keiji Sasaki, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 7743:
Southeast Asian International Advances in Micro/Nanotechnology

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