scholarly journals Interplay between phonon confinement and Fano effect on Raman line shape for semiconductor nanostructures: Analytical study

2016 ◽  
Vol 230 ◽  
pp. 25-29 ◽  
Author(s):  
Priyanka Yogi ◽  
Shailendra K. Saxena ◽  
Suryakant Mishra ◽  
Hari Mohan Rai ◽  
Ravikiran Late ◽  
...  
Keyword(s):  
Raman Line ◽  
Line Shape ◽  
Analytical Study ◽  
Semiconductor Nanostructures ◽  
Phonon Confinement ◽  
Fano Effect

Generalisation of phonon confinement model for interpretation of Raman line-shape from nano-silicon

2017 ◽  
Vol 4 (2) ◽  
pp. 227-233 ◽  
Author(s):  
Manushree Tanwar ◽  
Priyanka Yogi ◽  
Simran Lambora ◽  
Suryakant Mishra ◽  
Shailendra K. Saxena ◽  
...  
Keyword(s):  
Raman Line ◽  
Line Shape ◽  
Phonon Confinement ◽  
Nano Silicon ◽  
Confinement Model

Critical Raman line shape behavior of fluid nitrogen

2004 ◽  
Vol 76 (1) ◽  
pp. 147-155 ◽  
Author(s):  
M. Musso ◽  
F. Matthai ◽  
D. Keutel ◽  
K.-L. Oehme
Keyword(s):  
Raman Line ◽  
Line Shape ◽  
Line Broadening ◽  
Vibrational Resonance ◽  
Critical Isochore ◽  
Molecular Fluids ◽  
Detection Techniques ◽  
Gas Phases ◽  
Line Shapes ◽  
Band Position

Isotropic Raman line shapes of simple molecular fluids exhibit critical line broadening near their respective liquid-gas critical points. In order to observe this phenomenon, it is essential that the band position of a given vibrational mode is density-dependent, and that vibrational depopulation processes negligibly contribute to line broadening. Special attention was given to the fact that the isotropic (i.e., nonrotationally broadened) line shape of liquid N2 is affected by resonant intermolecular vibrational interactions between identical oscillators. By means of the well-chosen isotopic mixture (14N2).975 - (14N15N).025, the temperature and density dependences of shift, width, and asymmetry of the resonantly coupled 14N2 and, depending on the S/N ratio available, of the resonantly uncoupled 14N15N were determined, with up to milli-Kelvin resolution, in the coexisting liquid and gas phases and along the critical isochore, using a highest-resolution double monochromator and modern charge-coupled device detection techniques. Clear evidence was found that vibrational resonance couplings are present in all dense phases studied.

Polaritons in tetragonal BaTiO3; Theory of the Raman line shape

1970 ◽  
Vol 8 (17) ◽  
pp. 1387-1393 ◽  
Author(s):  
H.J. Benson ◽  
D.L. Mills
Keyword(s):  
Raman Line ◽  
Line Shape

Raman-line-shape study ofInxGa1−xAs on InP and GaAs substrates

1994 ◽  
Vol 50 (3) ◽  
pp. 1678-1683 ◽  
Author(s):  
J. L. Shen ◽  
I. M. Chang ◽  
Y. M. Shu ◽  
Y. F. Chen ◽  
S. Z. Chang ◽  
...  
Keyword(s):  
Raman Line ◽  
Line Shape ◽  
Gaas Substrates

scholarly journals Size dependence of Raman line-shape parameters due to confined phonons in silicon nanowires

2020 ◽  
Vol 6 (4) ◽  
pp. 669-676 ◽  
Author(s):  
Km Neeshu ◽  
Chanchal Rani ◽  
Ritika Kaushik ◽  
Manushree Tanwar ◽  
Devesh Pathak ◽  
...  
Keyword(s):  
Raman Line ◽  
Silicon Nanowires ◽  
Line Shape ◽  
Size Dependence ◽  
Shape Parameters ◽  
Confined Phonons
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