Modeling ultrafast shadowgraphy in laser-plasma interaction experiments
Modeling ultrafast shadowgraphy in laser-plasma interaction experiments
复制标题
激光等离子体相互作用实验中的超快阴影成像建模
DOI:
10.1088/0741-3335/58/6/065004
复制
发表时间:
2016
影响因子:
2.2
通讯作者:
M. C. Kaluza
中科院分区:
文献类型:
--
作者:
E. Siminos;S. Skupin;A. Sävert;J. M. Cole;S. P. D. Mangles;M. C. Kaluza
Ultrafast shadowgraphy is a new experimental technique that uses few-cycle laser pulses to image density gradients in a rapidly evolving plasma. It enables structures that move at speeds close to the speed of light, such as laser driven wakes, to be visualized. Here we study the process of shadowgraphic image formation during the propagation of a few cycle probe pulse transversely through a laser-driven wake using three-dimensional particle-in-cell simulations. In order to construct synthetic shadowgrams a near-field snapshot of the ultrashort probe pulse is analyzed by means of Fourier optics, taking into account the effect of a typical imaging setup. By comparing synthetic and experimental shadowgrams we show that the generation of synthetic data is crucial for the correct interpretation of experiments. Moreover, we study the dependence of synthetic shadowgrams on various parameters such as the imaging system aperture, the position of the object plane and the probe pulse delay, duration and wavelength. Finally, we show that time-dependent information from the interaction can be recovered from a single shot by using a broadband, chirped probe pulse and subsequent spectral filtering.
登录
查看更多内容
影响因子:
8.6
作者:
Saevert, A.;Mangles, S. P. D.;Kaluza, M. C.
通讯作者:
Kaluza, M. C.
影响因子:
8.6
作者:
A. Thomas;S. Mangles;Z. Najmudin;M. Kaluza;C. Murphy;Karl Krushelnick
通讯作者:
Karl Krushelnick
影响因子:
19.6
作者:
Buck, Alexander;Nicolai, Maria;Veisz, Laszlo
通讯作者:
Veisz, Laszlo
影响因子:
4
作者:
Schwab, M. B.;Saevert, A.;Kaluza, M. C.
通讯作者:
Kaluza, M. C.
影响因子:
8.6
作者:
Kaluza, M. C.;Schlenvoigt, H. -P.;Krushelnick, K. M.
通讯作者:
Krushelnick, K. M.