Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Concerted manipulation of laser plasma dynamics with two laser pulses. / Braenzel, J.; Andreev, A. A.; Ehrentraut, L.; Sommer, D.; Schnürer, M.
Laser Acceleration of Electrons, Protons, and Ions IV. ed. / Florian J. Gruner; Eric Esarey; Carl B. Schroeder. SPIE, 2017. 1024017 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10240).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
}
TY - GEN
T1 - Concerted manipulation of laser plasma dynamics with two laser pulses
AU - Braenzel, J.
AU - Andreev, A. A.
AU - Ehrentraut, L.
AU - Sommer, D.
AU - Schnürer, M.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - In this article we present experimental results from a counter-propagating two laser pulse experiment at high intensity and using ultrathin gold and plastic foil targets. We applied one laser pulse as a pre-pulse with an intensity of up to 1x1018 W/cm2. By this method we manipulated the pre-plasma of the foil target with which the stronger laser pulse with an intensity of 6x1019W/cm2 interacts. This alters significantly subsequent processes from the laser plasma interaction which we show the ion acceleration and high harmonic generation. On the one hand, the maximum kinetic ion energy and the maximum charge state for gold ions decline due to the pre-heating of the target in the time range of few ps, on the other hand the number of accelerated ions is increased. For the same parameter range we detected a significant raise of the high harmonic emission. Moreover, we present first experimental observations, that when the second laser pulse is applied as a counter-propagating post-pulse the energy distribution of accelerated carbon ions is charge selective altered. Our findings indicate that using this method a parametric optimization can be achieved, which promises new insights about the concurrent processes of the laser plasma dynamics.
AB - In this article we present experimental results from a counter-propagating two laser pulse experiment at high intensity and using ultrathin gold and plastic foil targets. We applied one laser pulse as a pre-pulse with an intensity of up to 1x1018 W/cm2. By this method we manipulated the pre-plasma of the foil target with which the stronger laser pulse with an intensity of 6x1019W/cm2 interacts. This alters significantly subsequent processes from the laser plasma interaction which we show the ion acceleration and high harmonic generation. On the one hand, the maximum kinetic ion energy and the maximum charge state for gold ions decline due to the pre-heating of the target in the time range of few ps, on the other hand the number of accelerated ions is increased. For the same parameter range we detected a significant raise of the high harmonic emission. Moreover, we present first experimental observations, that when the second laser pulse is applied as a counter-propagating post-pulse the energy distribution of accelerated carbon ions is charge selective altered. Our findings indicate that using this method a parametric optimization can be achieved, which promises new insights about the concurrent processes of the laser plasma dynamics.
KW - Laser plasma particle acceleration
KW - relativistic laser plasma dynamics
KW - ultrathin foil
UR - http://www.scopus.com/inward/record.url?scp=85029188888&partnerID=8YFLogxK
U2 - 10.1117/12.2271182
DO - 10.1117/12.2271182
M3 - Conference contribution
AN - SCOPUS:85029188888
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Laser Acceleration of Electrons, Protons, and Ions IV
A2 - Gruner, Florian J.
A2 - Esarey, Eric
A2 - Schroeder, Carl B.
PB - SPIE
T2 - Laser Acceleration of Electrons, Protons, and Ions IV 2017
Y2 - 24 April 2017 through 26 April 2017
ER -
ID: 53222109