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Piezoelectric tip‐sample distance control for near field optical microscopes
Khaled Karrai,Robert D. Grober +1 more
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In this paper, an aluminum coated tapered optical fiber is rigidly attached to one of the prongs of a high Q piezoelectric tuning fork, and the fork is mechanically dithered at its resonance frequency (33 kHz) so that the tip amplitude does not exceed 0.4 nm.Abstract:
An aluminum coated tapered optical fiber is rigidly attached to one of the prongs of a high Q piezoelectric tuning fork. The fork is mechanically dithered at its resonance frequency (33 kHz) so that the tip amplitude does not exceed 0.4 nm. A corresponding piezoelectric signal is measured on electrodes appropriately placed on the prongs. As the tip approaches within 20 nm above the sample surface a 0.1 nN drag force acting on the tip causes the signal to reduce. This signal is used to position the optical fiber tip to about 0 to 25 nm above the sample. Shear forces resulting from the tip‐sample interaction can be quantitatively deduced.read more
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Principles of nano-optics
Lukas Novotny,Bert Hecht +1 more
TL;DR: In this paper, the authors proposed a method for propagating and focusing of optical fields in a nano-optics environment using near-field optical probes and probe-sample distance control.
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Advances in atomic force microscopy
TL;DR: The most widely used technique for atomic-resolution force microscopy in vacuum is frequency-modulation AFM (FM-AFM), as well as other dynamic methods as discussed by the authors.
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Surface electromagnetic waves thermally excited: Radiative heat transfer, coherence properties and Casimir forces revisited in the near field
TL;DR: In this article, the influence of surface waves on the thermally excited electromagnetic field is discussed. And the authors introduce the fluctuation-dissipation theorem that allows to model the fluctuating electromagnetic fields.
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Scanning near-field optical microscopy with aperture probes: Fundamentals and applications
Bert Hecht,Beate Sick,Urs P. Wild,Volker Deckert,Renato Zenobi,Olivier J. F. Martin,Dieter W. Pohl +6 more
TL;DR: In this paper, the authors describe the fundamentals of scanning near-field optical microscopy with aperture probes, including instrumentation and probe fabrication, aspects of light propagation in metal-coated, tapered optical fibers, and field distributions in the vicinity of subwavelength apertures.
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Continuum generation from single gold nanostructures through near-field mediated intraband transitions
TL;DR: In this article, a broad visible and infrared photoluminescence continuum is detected from surface-plasmon-enhanced transitions in gold nanostructures, and the infrared signal is only present for surfaces with nanometer-scale roughness.
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Scanning force microscopy
TL;DR: In this article, a new technology makes it possible to examine hair in contact with air and to study the interactions of cationic polymers and hair, and to examine the interaction of hair and air.