Results 11 to 20 of about 116,825 (204)

The Control of Gold Nanoparticles on Polyester Fibers by Raman Spectrograms in Conditions of Information Uncertainty with Detection Accuracy [PDF]

open access: yesЖурнал нано- та електронної фізики, 2013
Results of modeling of the Raman spectrograms of polyester fibers are presented when drawing nanoparticles of gold on them. As a result of the carried-out modeling were allocated: initial ranges, background components and the Raman ranges without ...
V.M. Emelyanov   +5 more
doaj   +3 more sources

Spectroscopic Study for The Pollutants Gelbstoff in Diyala River and Its Effect on Raman Spectrum [PDF]

open access: yesEngineering and Technology Journal, 2005
The aim of this project is to limit the pollutants Gelbstoff in Diyala River and its effect on Raman spectrum by using fluorescence and Raman technique .
Rafid Ali, Uday Nayef, Rafah Nasif
doaj   +1 more source

New Aspects Concerning the Ampicillin Photodegradation

open access: yesPharmaceuticals, 2022
New aspects concerning the photodegradation (PD) of ampicillin are reported by photoluminescence (PL), Raman scattering and FTIR spectroscopy. The exposure of ampicillin in the absence (AM) and in the presence of the excipient (AMP) to UV light leads to ...
Radu Cercel   +7 more
doaj   +1 more source

Raman- and Infrared-Active Phonons in Nonlinear Semiconductor AgGaGeS4

open access: yesCrystals, 2023
AgGaGeS4 is an emerging material with promising nonlinear properties in the near- and mid-infrared spectral ranges. Here, the experimental phonon spectra of AgGaGeS4 single crystals synthesized by a modified Bridgman method are presented.
Mykhailo Valakh   +10 more
doaj   +1 more source

Optical properties of lowest-energy carbon allotropes from the first-principles calculations [PDF]

open access: yes, 2017
We study the optical properties of lowest-energy carbon allotropes in the infrared, visible and ultra-violet ranges of light in the general gradient approximation of the density functional theory.
Saleev, Vladimir, Shipilova, Alexandra
core   +2 more sources

Phase change behavior improvement of Sb2Te3 films by Si doping: Raman scattering evidence at elevated temperatures

open access: yesAIP Advances, 2022
The dynamic crystallization process of silicon (Si) doped Sb2Te3 (SST) films as a function of temperature (210–620 K) and Si concentration (0%–12%) has been investigated by temperature dependent Raman scattering.
Shuang Guo   +4 more
doaj   +1 more source

Femtosecond stimulated Raman spectrometer in the 320-520nm range

open access: yesOptics Express, 2011
Multi-µJ narrow-bandwidth (≈ 10 cm(-1)) picosecond pulses, broadly tunable in the visible-UV range (320-520 nm), are generated by spectral compression of femtosecond pulses emitted by an amplified Ti:sapphire system. Such pulses provide the ideal Raman pump for broadband femtosecond stimulated Raman spectroscopy, as here demonstrated on a heme protein.
E. Pontecorvo   +6 more
openaire   +6 more sources

Raman-scattering study of the InGaN alloy over the whole composition range [PDF]

open access: yesJournal of Applied Physics, 2005
We present Raman-scattering measurements on InxGa1−xN over the entire composition range of the alloy. The frequencies of the A1(LO) and E2 modes are reported and show a good agreement with the one-mode behavior dispersion predicted by the modified random-element isodisplacement model.
Hernandez, S.   +8 more
openaire   +4 more sources

Performances of full cross-validation partial least squares regression models developed using Raman spectral data for the prediction of bull beef sensory attributes

open access: yesData in Brief, 2018
The data presented in this article are related to the research article entitled “Application of Raman spectroscopy and chemometric techniques to assess sensory characteristics of young dairy bull beef” [1].
Ming Zhao   +5 more
doaj   +1 more source

Statistics of Raman-Active Excitations via Masurement of Stokes-Anti-Stokes Correlations [PDF]

open access: yes, 1999
A general fundamental relation connecting the correlation of Stokes and anti-Stokes modes to the quantum statistical behavior of vibration and pump modes in Raman-active materials is derived.
A. S. Shumovsky   +33 more
core   +3 more sources

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