Mechanical resonance behavior of near-field optical microscope probes
作者:
Fred F. Froehlich,
Tom D. Milster,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 70,
issue 12
页码: 1500-1502
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.118365
出版商: AIP
数据来源: AIP
摘要:
The mechanical resonance behavior of near-field optical microscope probes is examined with a simple experiment on a flat pyrex sample. While our tapered-fiber probe is locked on the second resonance for servo control, the vibration characteristics around the first resonance are investigated. We find that the overwhelming cause of decreased vibration amplitude as the tip approaches the sample is an increase in damping presumably due to a fluidlike layer on the sample. A small additional effect is also observed that could be due to force derivatives. ©1997 American Institute of Physics.
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