Correlation effects on Raman scattering from low‐energy vibrational modes in glasses. II. Experimental results

1993 ◽  
Vol 99 (3) ◽  
pp. 2046-2051 ◽  
Author(s):  
T. Achibat ◽  
A. Boukenter ◽  
E. Duval
Keyword(s):  
Raman Scattering ◽  
Low Energy ◽  
Experimental Results ◽  
Vibrational Modes ◽  
Correlation Effects

Lattice Relaxation Effects in Si and GaAs Nanocrystals

1994 ◽  
Vol 358 ◽  
Author(s):  
X. S. Zhao ◽  
Y. R. Ge ◽  
J. Schroeder ◽  
P. D. Persans
Keyword(s):  
Gallium Arsenide ◽  
Optical Properties ◽  
Porous Silicon ◽  
Raman Scattering ◽  
Lattice Relaxation ◽  
Experimental Results ◽  
Vibrational Modes ◽  
Strain Effects ◽  
Relaxation Effects ◽  
Almost All

ABSTRACTRaman scattering results on porous silicon, and silicon and gallium arsenide nanocrystals show that almost all vibrational modes become Raman active and remarkably soft in these nanocrystal systems. The experimental results further demonstrate that the carrier-induced strain effects play an important role on the optical properties of such nanocrystal systems.

scholarly journals SRS characteristics and its influence on SBS pulse compression in a fluorocarbon liquid

2017 ◽  
Vol 35 (1) ◽  
pp. 114-119 ◽  
Author(s):  
H. Yuan ◽  
Y. Wang ◽  
Z. Lu ◽  
Z. Liu ◽  
Z. Bai ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Pulse Compression ◽  
Laser Intensity ◽  
Stimulated Raman Scattering ◽  
Brillouin Scattering ◽  
Laser System ◽  
Experimental Results ◽  
Frequency Shifts ◽  
Experimental Medium ◽  
Stimulated Brillouin

AbstractIn this paper, the occurrence of the stimulated Raman scattering (SRS) and its effects on stimulated Brillouin scattering (SBS) pulse compression in FC-40 are investigated. As the experimental medium, the characteristics of FC-40 are suitable for pulse compression. Firstly, the frequency shifts and the threshold of SRS in FC-40 are studied with a mode-locked laser system as pump source, without taking the SBS effect into account. On the basis of the experimental results, the competition between SRS and SBS as well as its effect on pulse compression is investigated. Results show that SRS gets higher gain and grows rapidly with the increase of the laser intensity by pump effect, which will result in decreasing of SBS energy reflection.

Energy shift and decay of low-energy vibrational modes

1989 ◽  
Vol 211-212 ◽  
pp. 350-353 ◽  
Author(s):  
J.A. Leiro ◽  
M. Persson
Keyword(s):  
Energy Shift ◽  
Low Energy ◽  
Vibrational Modes
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