What question did this study set out to answer?

To develop and evaluate an improved, compact piezoelectric shear-force feedback system for tip-sample distance regulation in scanning near-field optical microscopy, specifically for liquid environments.

April 1, 1997Review of Scientific Instruments

Distance control in near-field optical microscopy with piezoelectrical shear-force detection suitable for imaging in liquids

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Authors

RBRóbert BrunnerCarl Zeiss (Germany)ABAlexander BietschUniversity of Basel OHO. HollricherForschungszentrum Jülich

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Implication

Experimental study demonstrates sensitive tip-sample distance control using dual-piezoelectric shear-force detection, suggesting high-resolution optical imaging in liquid biological environments.

Key Points

To develop and evaluate an improved, compact piezoelectric shear-force feedback system for tip-sample distance regulation in scanning near-field optical microscopy, specifically for liquid environments.
Mounted a tapered glass fiber within a metal tube sandwiched between two piezoelectric elements, using one piezoelement to drive the fiber at mechanical resonance and the second to detect shear-force damping.
Regulated tip-sample distance by recording resonance damping during surface approach without using external optical detection light sources.
Achieved stable distance control with a peak-to-peak tip oscillation amplitude of 5–10 nm and a topographical resolution of 5 pm/√Hz.
Maintained functional tip-sample tracking while measuring samples submerged under several millimeters of liquid.

Cite This Study

Brunner et al. (1997) studied this question.

synapsesocial.com/papers/6a9398e53bc26c9bae37d4fe https://doi.org/10.1063/1.1147990

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Implication

Experimental study demonstrates sensitive tip-sample distance control using dual-piezoelectric shear-force detection, suggesting high-resolution optical imaging in liquid biological environments.

Distance control in near-field optical microscopy with piezoelectrical shear-force detection suitable for imaging in liquids

Discussion

Member takes

Implication

Key Points

Cite This Study

Distance control in near-field optical microscopy with piezoelectrical shear-force detection suitable for imaging in liquids

Discussion

Member takes

Implication

Key Points

Cite This Study

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