Direct Observation of Density-Gradient Effects in Harmonic Generation from Plasma Mirrors

2013 ◽  
Vol 110 (17) ◽  
Author(s):  
S. Kahaly ◽  
S. Monchocé ◽  
H. Vincenti ◽  
T. Dzelzainis ◽  
B. Dromey ◽  
...  
Keyword(s):  
Density Gradient ◽  
Harmonic Generation ◽  
Direct Observation ◽  
Gradient Effects

scholarly journals Density gradient effects on beam plasma linear instabilities for fast ignition scenario

2006 ◽  
Vol 24 (2) ◽  
pp. 269-273 ◽  
Author(s):  
ANTOINE BRET ◽  
CLAUDE DEUTSCH
Keyword(s):  
Electron Beam ◽  
Relativistic Electron ◽  
Density Gradient ◽  
Relativistic Electron Beam ◽  
Fast Ignition ◽  
The Other ◽  
Inertial Fusion ◽  
Linear Phase ◽  
Unstable System ◽  
Gradient Effects

In the fast ignition scenario for inertial fusion, a relativistic electron beam is supposed to travel from the side of the fusion pellet to its core. One one hand, a relativistic electron beam passing through a plasma is a highly unstable system. On the other hand, the pellet core is denser than its side by four orders of magnitude so that the beam makes its way through a important density gradient. We here investigate the effect of this gradient on the instabilities. It is found that they should develop so early that gradient effects are negligible in the linear phase.

Direct observation of trapped carriers in polydiacetylene films by optical second harmonic generation

2007 ◽  
Vol 90 (17) ◽  
pp. 171119 ◽  
Author(s):  
Takaaki Manaka ◽  
Hideki Kohn ◽  
Yuki Ohshima ◽  
Eunju Lim ◽  
Mitsumasa Iwamoto
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Direct Observation ◽  
Second Harmonic ◽  
Optical Second Harmonic Generation

scholarly journals Direct observation of controlled strain-induced second harmonic generation in a Co0.25Pd0.75 thin film on a Pb(ZrTi)O3 substrate

2007 ◽  
Vol 90 (4) ◽  
pp. 044108 ◽  
Author(s):  
Jae-Woo Jeong ◽  
Sung-Chul Shin ◽  
N. N. Dadoenkova ◽  
I. L. Lyubchanskii ◽  
V. K. Valev ◽  
...  
Keyword(s):  
Thin Film ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Direct Observation ◽  
Second Harmonic
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