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Proceedings Article

Analysis of photothermally induced vibration in metal coated AFM cantilever

[+] Author Affiliations
Shahrul Kadri, Hideki Fujiwara, Keiji Sasaki

Hokkaido Univ. (Japan)

Proc. SPIE 7743, Southeast Asian International Advances in Micro/Nanotechnology, 774307 (May 19, 2010); doi:10.1117/12.861053
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From Conference Volume 7743

  • Southeast Asian International Advances in Micro/Nanotechnology
  • Waleed S. Mohammed; Te-Yuan Chung
  • Bangkok, Thailand | March 08, 2010

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.

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Citation

Shahrul Kadri ; Hideki Fujiwara and Keiji Sasaki
"Analysis of photothermally induced vibration in metal coated AFM cantilever", Proc. SPIE 7743, Southeast Asian International Advances in Micro/Nanotechnology, 774307 (May 19, 2010); doi:10.1117/12.861053; http://dx.doi.org/10.1117/12.861053


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