Enhancement of photon number reflected by the relativistic flying mirror.
Laser light reflection by a relativistically moving electron density modulation (flying mirror) in a wake wave generated in a plasma by a high intensity laser pulse is investigated experimentally. A counterpropagating laser pulse is reflected and upshifted in frequency with a multiplication factor of 37-66, corresponding to the extreme ultraviolet wavelength. The demonstrated flying mirror reflectivity (from 3 x 10(-6) to 2 x 10(-5), and from 1.3 x 10(-4) to 0.6 x 10(-3), for the photon number and pulse energy, respectively) is close to the theoretical estimate for the parameters of the experiment.
Kando
M
M
Advanced Photon Research Center, JAEA, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan.
Pirozhkov
A S
AS
Kawase
K
K
Esirkepov
T Zh
TZh
Fukuda
Y
Y
Kiriyama
H
H
Okada
H
H
Daito
I
I
Kameshima
T
T
Hayashi
Y
Y
Kotaki
H
H
Mori
M
M
Koga
J K
JK
Daido
H
H
Faenov
A Ya
AY
Pikuz
T
T
Ma
J
J
Chen
L-M
LM
Ragozin
E N
EN
Kawachi
T
T
Kato
Y
Y
Tajima
T
T
Bulanov
S V
SV