High-contrast piezoelectric fiber resonance detection for near-field optical microscopy

Debarre, A.; Richard, A.; Tchenio, P.
November 1997
Review of Scientific Instruments;Nov97, Vol. 68 Issue 11, p4120
Academic Journal
Describes a simple, piezoelectric shear-force detection for controlling the tip-sample distance in near-field optical microscopes. Demodulation by a lock-in amplifier; High signal-to-background allowing the fiber resonance to be identified easily; Shear forces causing the signal to reduce.


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