Scanning techniques are instrumental methodologies that acquire spatially resolved information from a specimen or environment by systematically interrogating it point-by-point or line-by-line, often using a focused probe such as photons, electrons, ions, or mechanical tips. These techniques include modalities like scanning electron microscopy, scanning probe microscopies, and various spectroscopic scanning methods, which map physical, chemical, or electronic properties across a surface or volume. Key parameters include spatial and temporal resolution, signal-to-noise ratio, and contrast mechanisms determined by probe–sample interactions. Scanning techniques are fundamental for nanoscale characterization, metrology, and defect analysis in materials science, biology, and semiconductor research.
The chemical composition of a material alone sometimes reveals little about its properties. The decisive factor is often the arrangement of the molecules in the atomic lattice structure or on the surface of the material. ...
Nanophysics
Jan 16, 2025
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31
Imagine standing by a lake and throwing a stone into the water. Waves spread out in circular patterns and can reflect at obstacles and boundaries. Researchers at the University of Regensburg, in collaboration with colleagues ...
Nanophysics
Jan 16, 2025
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139
Since the 1950s, scientists have used radio waves to uncover the molecular "fingerprints" of unknown materials, aiding in tasks as varied as scanning the human body with MRI machines and detecting explosives at airports.
Nanophysics
Jan 6, 2025
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416
In a study recently published in the journal Nano Letters, researchers from Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Japan, used frequency-modulated atomic force microscopy to reveal the submolecular ...
Nanomaterials
Dec 12, 2024
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53
Different types of cancer have unique molecular "fingerprints" which are detectable in early stages of the disease and can be picked up with near-perfect accuracy by small, portable scanners in just a few hours, according ...
Bio & Medicine
Dec 10, 2024
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83
A research team has developed an advanced continuous rotational scanning photoacoustic computed tomography (PACT) system for rapid imaging of living organisms. The research is published in the journal Laser & Photonics Reviews.
Optics & Photonics
Nov 11, 2024
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29
Researchers from Madrid explain a phenomenon that allows the direction of light emission to be controlled at the atomic scale. The paper provides a detailed explanation of how the profile of the light collected in a scanning ...
Nanophysics
Nov 5, 2024
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47
Purdue University researchers have developed patent-pending one-dimensional boron nitride nanotubes (BNNTs) containing spin qubits, or spin defects. The BNNTs are more sensitive in detecting off-axis magnetic fields at high ...
Nanophysics
Oct 2, 2024
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101
A joint research group from China recently achieved the first observation of intrinsic magnetic structures in a kagome lattice by using the highly sensitive magnetic force microscopy (MFM) system of the Steady High Magnetic ...
Condensed Matter
Sep 25, 2024
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104
Battery performance is heavily influenced by the non-uniformity and failure of individual electrode particles. Understanding the reaction mechanisms and failure modes at nanoscale level is key to advancing battery technologies ...
Nanophysics
Sep 24, 2024
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