Results 211 to 220 of about 180,242 (261)

Transient infrared transmission spectroscopy

Analytical Chemistry, 1990
Transient infrared transmission spectroscopy is a new method that can acquire analytically useful transmission spectra from moving, optically thick solids. No sample preparation is required. The spectra are of sufficient quality for accurate quantitative compositional analysis.
R W, Jones, J F, McClelland
openaire   +2 more sources

Transmission Electron Spectroscopy

2021
A spectro-microscopic view of the intimate features of the nanomaterials is allowed by means of electron beams. This is achieved with the use of transmission electron microscopes (TEM) equipped with spectrometers such as electron or optical analyzers. The monoenergetic electron beam used in TEM is a minute and intense probe penetrating thin samples.
Agostino, Raffaele Giuseppe   +1 more
openaire   +1 more source

Transmission spectroscopy on sawtooth-doping superlattices

Physical Review B, 1989
We have performed transmission experiments on sawtooth-doping superlattices of short periodicity (100\char21{}200 A\r{}). Oscillations have been observed in the transmission spectra as a function of frequency due to the size quantization effect. We present a microscopic model of the transmission which takes into account the coupling between quantum ...
, Ullrich   +4 more
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Electron Transmission Spectroscopy: Rare Gases

Physical Review A, 1972
A transmission experiment is used to observe structure in the total electron-impact cross section for He, Ne, Ar, Kr, and Xe below the respective ionization potentials, and also in the region of autoionizing states. The positions of the resonances are tabulated and compared with the results of other investigators.
L. Sanche, G. J. Schulz
openaire   +1 more source

Sensitivity-Enhanced Transmission Raman Spectroscopy

Applied Spectroscopy, 2013
Transmission Raman sensitivity for a representative commercial pharmaceutical tablet was increased by a factor of 40 using optics that returned lost laser and Raman photons to the tablet surface. A new achromatic one-way mirror is introduced that uses the spatial coherence of laser light to nondestructively force laser photons through the reflective ...
openaire   +2 more sources

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