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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

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

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

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

Application of Near-Field Scanning Microwave Microscopy in Liquid Environment

open access: yesIEEE Access, 2022
In this article, a method of illustrating the electromagnetic properties of liquid specimens is proposed by our homemade near-field scanning microwave microscopy (NSMM).
Yujie Chen   +8 more
doaj   +1 more source

Near-field optical microscopy toward its applications for biological studies

open access: yesBiophysics and Physicobiology, 2023
Near-field scanning optical microscopy (NSOM) is a super-resolution optical microscopy based on nanometrically small near-field light at a metallic tip. It can be combined with various types of optical measurement techniques, including Raman spectroscopy,
Takayuki Umakoshi
doaj   +1 more source

Microwaves Are Everywhere: “SMM: Nano-Microwaves”

open access: yesIEEE Journal of Microwaves, 2021
If the Twentieth Century boasted of the Space Age and the Computer Age, the Twenty-First Century is certainly starting off with the Age of Biology, or at least Biochemistry. The enormous impact of CRISPR (clustered regularly interspaced short palindromic
Peter H. Siegel
doaj   +1 more source

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