Results 1 to 10 of about 221,642 (264)

Terahertz near-field microscopy based on an air-plasma dynamic aperture [PDF]

open access: yesLight: Science & Applications, 2022
A THz near-field technique was proposed based on an air-plasma dynamic aperture, which can achieve sub-wavelength THz imaging without approaching the sample with any devices.
Xin-ke Wang   +5 more
doaj   +2 more sources

Effective Polarizability in Near-Field Microscopy of Phonon-Polariton Resonances [PDF]

open access: yesNanomaterials
We investigate the resonant characteristics of planar surfaces and distinct edges of structures with the excitation of phonon-polaritons. We analyze two materials supporting phonon-polariton excitations in the mid-infrared spectrum: silicon carbide ...
Viktoriia E. Babicheva
doaj   +2 more sources

Scanning Near-Field Optical Microscopy

open access: yesBiomolecules & Biomedicine, 2008
An average human eye can see details down to 0,07 mm in size. The ability to see smaller details of the matter is correlated with the development of the science and the comprehension of the nature. Today’s science needs eyes for the nano-world. Examples
Dušan Vobornik, Slavenka Vobornik
doaj   +4 more sources

Infrared-spectroscopic, dynamic near-field microscopy of living cells and nanoparticles in water [PDF]

open access: yesScientific Reports, 2021
Infrared fingerprint spectra can reveal the chemical nature of materials down to 20-nm detail, far below the diffraction limit, when probed by scattering-type scanning near-field optical microscopy (s-SNOM).
Korbinian J. Kaltenecker   +3 more
doaj   +2 more sources

A Novel 3D Probe for Near-Field Scanning Microwave Microscopy [PDF]

open access: yesSensors
Near-field scanning microwave microscopy (NSMM) offers the ability to probe local electromagnetic properties beyond the classical Abbe diffraction limit, but achieving high resolution over practical scan areas remains challenging.
Ali M. Almuhlafi, Omar M. Ramahi
doaj   +2 more sources

Quantitative Modeling of Near-Field Interactions in Terahertz Near-Field Microscopy

open access: yesApplied Sciences, 2023
Terahertz scattering-scanning near-field optical microscopy (THz s-SNOM), combining the best features of terahertz technology and s-SNOM technology, has shown unique advantages in various applications.
Zhaomin Peng   +3 more
doaj   +1 more source

Optical Near-Field Electron Microscopy [PDF]

open access: yesPhysical Review Applied, 2021
Imaging dynamical processes at interfaces and on the nanoscale is of great importance throughout science and technology. While light-optical imaging techniques often cannot provide the necessary spatial resolution, electron-optical techniques damage the specimen and cause dose-induced artefacts.
Marchand, Raphaël   +7 more
openaire   +4 more sources

Dark-probe scanning near-field microscopy

open access: yesNew Journal of Physics, 2023
Scanning near-field optical microscopy (SNOM) is a well-known powerful optical technique for visualization of surface nanostructures and fields far beyond the diffraction limit and thus indispensable in material- and nanoscience.
Henrik Parsamyan   +3 more
doaj   +1 more source

Scanning Near-Field Optical Microscopy of Ultrathin Gold Films

open access: yesNanomaterials, 2023
Ultrathin metal films are an essential platform for two-dimensional (2D) material compatible and flexible optoelectronics. Characterization of thin and ultrathin film-based devices requires a thorough consideration of the crystalline structure and local ...
Dmitry I. Yakubovsky   +7 more
doaj   +1 more source

Super-resolution optical microscopy using cylindrical vector beams

open access: yesNanophotonics, 2022
Super-resolution optical microscopy, which gives access to finer details of objects, is highly desired for fields of nanomaterial, nanobiology, nanophotonics, etc.
Liu Min   +7 more
doaj   +1 more source

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