Tapping-mode tuning fork force sensing for near-field scanning optical microscopy

Din-ping Tsai, Y.Y. Lu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

74 Citations (Scopus)


A tapping-mode tuning fork force-sensing method for near-field scanning optical microscope is reported. Use of the tapping-mode tuning fork with mechanically asymmetric excitation generates better stability and sensitivity than in the shear force mode. Comparison of force curves for the two methods demonstrate that the tapping-mode tuning fork method provides a simpler and more sensitive method for near-field measurements. The method is demonstrated by imaging a sample consisting of 500 nm standard polystyrene spheres on silica in both air and water. © 1998 American Institute of Physics.
Original languageEnglish
Pages (from-to)2724-2726
Number of pages3
JournalApplied Physics Letters
Issue number19
Publication statusPublished - 1 Dec 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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