Piezoelectric shear force detection: A geometry avoiding critical tip/tuning fork gluing
作者:
J. Salvi,
P. Chevassus,
A. Mouflard,
S. Davy,
M. Spajer,
D. Courjon,
K. Hjort,
L. Rosengren,
期刊:
Review of Scientific Instruments
(AIP Available online 1998)
卷期:
Volume 69,
issue 4
页码: 1744-1746
ISSN:0034-6748
年代: 1998
DOI:10.1063/1.1148835
出版商: AIP
数据来源: AIP
摘要:
A technique for controlling the tip–sample distance in near-field optical microscopes is presented. It consists of mechanically exciting a fiber tip inserted without any adhesive between the two prongs of a highQ-piezoelectric tuning fork. The detection of the shear forces is classically achieved by measuring the decrease of the dithering amplitude when the tip approaches the surface. This simple setup greatly simplifies tip replacement and its resonance frequency tuning. ©1998 American Institute of Physics.
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