scholarly journals ABSORPTION AND SURFACE ENHANCED RESONANT RAMAN SPECTRA OF RIBOFLAVIN IN SILVER COLLOID

1991 ◽  
Vol 40 (2) ◽  
pp. 198
Author(s):  
LIANG ER-JUN ◽  
ZHANG PENG-XIANG
Keyword(s):  
Raman Spectra ◽  
Silver Colloid ◽  
Surface Enhanced ◽  
Resonant Raman

Surface-enhanced Raman spectra of 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin/silver colloid system: what information about the porphyrin do we obtain?

1991 ◽  
Vol 30 (22) ◽  
pp. 4103-4105 ◽  
Author(s):  
Blanka. Vlckova ◽  
Pavel. Matejka ◽  
Petr. Pancoska ◽  
Vladimir. Baumruk ◽  
Vladimir. Kral
Keyword(s):  
Raman Spectra ◽  
Silver Colloid ◽  
Colloid System ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Resonance and antiresonance in Raman scattering in GaSe and InSe crystals

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. Osiekowicz ◽  
D. Staszczuk ◽  
K. Olkowska-Pucko ◽  
Ł. Kipczak ◽  
M. Grzeszczyk ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Temperature Effect ◽  
Band Gap ◽  
Raman Spectra ◽  
Quantum Interference ◽  
Optical Band Gap ◽  
Phonon Coupling ◽  
Phonon Modes ◽  
Electron Phonon Coupling ◽  
Resonant Raman

AbstractThe temperature effect on the Raman scattering efficiency is investigated in $$\varepsilon$$ ε -GaSe and $$\gamma$$ γ -InSe crystals. We found that varying the temperature over a broad range from 5 to 350 K permits to achieve both the resonant conditions and the antiresonance behaviour in Raman scattering of the studied materials. The resonant conditions of Raman scattering are observed at about 270 K under the 1.96 eV excitation for GaSe due to the energy proximity of the optical band gap. In the case of InSe, the resonant Raman spectra are apparent at about 50 and 270 K under correspondingly the 2.41 eV and 2.54 eV excitations as a result of the energy proximity of the so-called B transition. Interestingly, the observed resonances for both materials are followed by an antiresonance behaviour noticeable at higher temperatures than the detected resonances. The significant variations of phonon-modes intensities can be explained in terms of electron-phonon coupling and quantum interference of contributions from different points of the Brillouin zone.

Models and Methods for Quantitative Analysis of Surface-Enhanced Raman Spectra

2014 ◽  
Vol 18 (2) ◽  
pp. 525-536 ◽  
Author(s):  
Shuo Li ◽  
James O. Nyagilo ◽  
Digant P. Dave ◽  
Jean Gao
Keyword(s):  
Quantitative Analysis ◽  
Raman Spectra ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Surface enhanced Raman spectra of the organic nonlinear optic material: Methyl 3-(4-methoxy phenyl)prop-2-enoate

2008 ◽  
Vol 120 (4) ◽  
pp. 405-410 ◽  
Author(s):  
D. Sajan ◽  
I. Hubert Joe ◽  
V. S. Jayakumar ◽  
Jacek Zaleski
Keyword(s):  
Nonlinear Optic ◽  
Raman Spectra ◽  
Surface Enhanced ◽  
Surface Enhanced Raman
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