Results 61 to 70 of about 307,616 (251)

Raman microspectroscopy of fixed rabbit and human lenses and lens slices: New potentialities [PDF]

, 1989
Raman spectroscopy is a non-invasive, non-destructive technique for the study of the macromolecular composition of tissues. Raman spectra were obtained from intact fresh and paraformaldehyde fixed rabbit lenses and from thin slices prepared from these ...
Bot, Annet C.C., Greve, Jan, Huizinga, Alex, Mul, Frits F.M. de, Vrensen, Gijs F.J.M.   +4 more
core   +3 more sources

Scanning Raman spectroscopy for characterizing compositionally spread films [PDF]

, 2005
Composition-spread La1-xSrxMnO3 thin films were prepared by pulsed laser deposition technique from LaMnO3 and SrMnO3 targets. The films were epitaxial with a continuous variation of the out-of-plane lattice parameter along the direction of composition ...
Blamire, MG, Venimadhav, A, Yates, KA
core  

A Fast Fluorescence Background Suppression Method for Raman Spectroscopy Based on Stepwise Spectral Reconstruction

IEEE Access, 2018
Raman spectroscopy is a rapid and non-destructive technique for detecting unique spectral fingerprints from biological samples. Raw Raman spectra often come with strong fluorescence background that makes spectral interpretation challenging.
Shuo Chen, Lingmin Kong, Wenbin Xu, Xiaoyu Cui, Quan Liu   +4 more
doaj   +1 more source

Comparative Raman Studies of Sr2RuO4, Sr3Ru2O7 and Sr4Ru3O10

, 2004
The polarized Raman spectra of layered ruthenates of the Srn+1RunO3n+1 (n=1,2,3) Ruddlesden-Popper series were measured between 10 and 300 K. The phonon spectra of Sr3Ru2O7 and Sr4Ru3O10 confirmed earlier reports for correlated rotations of neighboring ...
Abrashev, M. V., Backstrom, J., Chu, C. W., Iliev, M. N., Litvinchuk, A. P., Meng, R. L., Popov, V. N., Sun, Y. Y.   +7 more
core   +2 more sources

A library of ab initio Raman spectra for automated identification of 2D materials

, 2020
Raman spectroscopy is frequently used to identify composition, structure and layer thickness of 2D materials. Here, we describe an efficient first-principles workflow for calculating resonant first-order Raman spectra of solids within third-order ...
Leffers, U., Pedersen, T. G., Taghizadeh, A., Thygesen, K. S.   +3 more
core   +1 more source

Introducing the Novel Mixed Gaussian-Lorentzian Lineshape in the Analysis of the Raman Signal of Biochar

Nanomaterials, 2020
In this research, an innovative procedure is proposed to elaborate Raman spectra obtained from nanostructured and disordered solids. As a challenging case study, biochar, a bio-derived carbon based material, was selected. The complex structure of biochar
Alberto Tagliaferro, Massimo Rovere, Elisa Padovano, Mattia Bartoli, Mauro Giorcelli   +4 more
doaj   +1 more source

c-axis Raman Scattering in MgB2: Observation of a Dirty-Limit Gap in the pi-bands

, 2003
Raman scattering spectra from the ac-face of thick MgB2 single crystals were measured in zz, xz and xx polarisations. In zz and xz polarisations a threshold at around 29 cm^{-1} forms in the below Tc continuum but no pair-breaking peak is seen, in ...
A. Yamanaka, C. Buzea, J. W. Quilty, J. W. Quilty, S. Lee, S. Lee, S. Tajima   +6 more
core   +1 more source

Orbital angular momentum impact on light scattering by phonons tested experimentally

APL Photonics
Polarized Raman spectra of piezoelectric bismuth germanate single crystal were recorded using vortex light in order to verify the predicted symmetry selection rules for Raman scattering of photons with nonzero orbital angular momentum.
A. Pylypets, F. Borodavka, I. Rafalovskyi, I. Gregora, E. Buixaderas, P. Bohacek, J. Hlinka   +6 more
doaj   +1 more source

Identification of mono-and few-layer graphene: Raman study

Materials and Devices, 2018
In this theoretical work, the Raman spectra were analyzed by considering the origin of the G peak, its shape, position and relative intensity as a function of the number of graphene layers. By using the spectral moment’s method, the Raman spectra of mono,
M. Boutahir, Ah Rahmani, H. Chadli, A. Rahmani   +3 more
doaj   +1 more source

Nature and Raman signatures of the Higgs amplitude mode in the coexisting superconducting and charge-density-wave state

, 2014
We investigate the behavior of the Higgs (amplitude) mode when superconductivity emerges on a preexisting charge-density-wave state. We show that the weak overdamped square-root singularity of the amplitude fluctuations in a standard BCS superconductor ...
Benfatto, L., Cea, T.
core   +1 more source