Damping Behavior of Bent Fiber NSOM Probes in Water

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DOIResolve DOI: http://doi.org/10.1063/1.3309392
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TypeArticle
Journal titleJournal of Applied Physics
Volume107
Issue043526
AbstractThe damping behavior of bent fiber near-field scanning optical microscopy (NSOM) probes operating in tapping mode oscillation is investigated in air and water. We show that the significantdrop in probe quality factor Q, which occurs at the air-water interface, is due to meniscus damping. As the probe is immersed in water viscous damping adds to the meniscus damping. Damping effects which lead to a progressive drop in the peak tapping mode resonance frequency are accounted for by additional torsional modes of probe vibration. Understanding the damping processes should lead to the design of high sensitivity NSOM probes for scanning soft biological samples under liquid.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NPARC number17379810
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Record identifier193ca458-f404-4d0c-a56b-dd4df92853c7
Record created2011-03-23
Record modified2016-05-09
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