Much like the traditional scanning electron microscope (SEM), the field emission scanning electron microscope uses electrons to illuminate a sample, instead of visible light as is used in optical ...

Advances in electron optics have enabled the imaging ... In the mid-1990s, a new generation of commercial field-emission TEMs with scanning attachments made STEM techniques widely available ...

This means that each electron transition will produce a photon of a different frequency and hence a different colour. This causes line emission spectra to be produced, as shown below. This is not ...

More information: Min-Sik Kim et al, Tailoring Single-Electron Emission Distributions in the Time–Energy Phase Space, Nano Letters (2024). DOI: 10.1021/acs.nanolett.4c02653 ...

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Researchers at Wuhan University recently observed amplified spontaneous emission originating from degenerate electron-hole ...

Combine field emission SEM (FE-SEM) technology with advanced analytics. Profit from proven Gemini electron optics. Choose from a variety of detector options: you can image particles, surfaces ...

The instrument is a dedicated field emission, wavelength dispersive electron microprobe (EPMA). Quantitative elemental data can be obtained from most elements (Fluorine to Uranium) with detection ...