Direct measurement of the absolute value of the interaction force between the fiber probe and the sample in a scanning near-field optical microscope

D. A. Lapshin, V. S. Letokhov, George Shubeita, S. K. Sekatskii, G. Dietler

    Research output: Contribution to journalArticle

    Abstract

    The absolute values of the force exerted by the fiber probe of a scanning near-field optical microscope onto the surface were measured using an atomic force microscope in ambient conditions. We demonstrate that a usually neglected static attraction force is dominant at small dither amplitudes and is of the order of 200 nN. The tapping component of the force, often referred to as shear force, is of the order of 1 nN at these conditions for both the tuning fork-based and optical in resonance detection schemes. Other peculiarities of the shear force interaction are also discussed.

    Original languageEnglish (US)
    Pages (from-to)1503-1505
    Number of pages3
    JournalApplied Physics Letters
    Volume81
    Issue number8
    DOIs
    StatePublished - Aug 19 2002

    Fingerprint

    optical microscopes
    near fields
    scanning
    fibers
    probes
    interactions
    dithers
    shear
    forks
    attraction
    tuning
    microscopes

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Direct measurement of the absolute value of the interaction force between the fiber probe and the sample in a scanning near-field optical microscope. / Lapshin, D. A.; Letokhov, V. S.; Shubeita, George; Sekatskii, S. K.; Dietler, G.

    In: Applied Physics Letters, Vol. 81, No. 8, 19.08.2002, p. 1503-1505.

    Research output: Contribution to journalArticle

    Lapshin, D. A. ; Letokhov, V. S. ; Shubeita, George ; Sekatskii, S. K. ; Dietler, G. / Direct measurement of the absolute value of the interaction force between the fiber probe and the sample in a scanning near-field optical microscope. In: Applied Physics Letters. 2002 ; Vol. 81, No. 8. pp. 1503-1505.
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    AU - Shubeita, George

    AU - Sekatskii, S. K.

    AU - Dietler, G.

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