1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Particle-in-cell simulations of short-pulse, high intensity light impinging on structured targets
Rent:
Rent this article for
USD
10.1063/1.3062832
/content/aip/journal/pop/16/1/10.1063/1.3062832
http://aip.metastore.ingenta.com/content/aip/journal/pop/16/1/10.1063/1.3062832
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The filtered Poynting flux, in the plane at . The units for are such that 3.6 (yellow online) is the value of the incident beam in vacuum. The and axes are in . The white lines indicate the initial plasma simulation region for (a) the pointed top cone and (b) the flat top cone.

Image of FIG. 2.
FIG. 2.

The filtered Poynting flux, in (a) and the natural logarithm of in (b) for the flat top cone at . The initial simulation region is shown by the white lines in (a) and the black lines in (b). The units for are such that 3.6 (orange online) is the value of the incident beam in vacuum. The and axes are in . In (b), , the nonrelativistic critical density, at 0 (online at the change from red to green).

Image of FIG. 3.
FIG. 3.

The filtered Poynting flux, in (a) and the natural logarithm of the electron density in (b) for the pointed top cone at . The initial simulation region is shown by the white lines in (a) and the black lines in (b). The units for are such that 3.6 (blue online) is the value of the incident beam in vacuum. The and axes are in . In (b), , the nonrelativistic critical density, at 0 (online at the change from red to green).

Image of FIG. 4.
FIG. 4.

A histogram of the number of electrons vs their kinetic energy (KE) in MeV, each curve separately normalized to the peak number, for those electrons in the indicated simulation with kinetic energy above at . The simulations are for -polarized light and central cone irradiations.

Image of FIG. 5.
FIG. 5.

The absorption fraction as defined in the text vs time in ps. The upper black curve is for the equivalent slab irradiated by -polarized light. The lower black curve is for the equivalent slab in -polarized light. The colored curves are for the indicated cone simulations with the solid ones for central irradiations and the dotted ones for the shifted irradiations.

Image of FIG. 6.
FIG. 6.

positions of electrons with energies greater than at binned on a mesh with the maximum per zone capped at 100 particles. The and axes are in and the initial plasma position is shown by the solid (red online) lines. These plots are from -polarized simulations with (a) flat top cone and central irradiation, (b) flat top cone and beam shift, (c) flat top cone with fixed ions and central irradiation, (d) equivalent slab, (e) pointed top cone and central irradiation, and (f) pointed top cone and beam shift.

Image of FIG. 7.
FIG. 7.

The absorption fraction as defined in the text vs time in ps for the indicated -polarized cone irradiations. The solid curves are taken from Fig. 5 with the upper magenta curve for the central irradiation of the flat top cone and the lower black one for the equivalent slab. The dotted magenta curve is for the fixed ion simulation of the central irradiation of the flat top cone.

Image of FIG. 8.
FIG. 8.

(a) The filtered Poynting flux, for the cone geometry given by the white lines at . The units for are such that 3.6 (blue online) is the value of the incident beam in vacuum. The and axes are in . (b) The absorption fraction as a function of time in ps for -polarized irradiations. The bottom (black online) and the middle (blue online) curves are from Fig. 5 for the equivalent slab and the 13° pointed top cone. The top (magenta online) curve is for the 22° pointed top cone shown in (a).

Image of FIG. 9.
FIG. 9.

The filtered Poynting flux, for the -polarized irradiation of the cone shown by the white curves. Part (a) is for the beam shift at and (b) is for the central irradiation at . The Poynting flux in vacuum is 3.6 [blue online in (a) and yellow online in (b)]. The and axes are in .

Image of FIG. 10.
FIG. 10.

positions of electrons with energies greater than at binned on a mesh with the maximum capped at 100 particles per cell for -polarized irradiations. The and axes are in and the initial plasma position is shown by the solid (red online) curves. Part (a) is for the beam shift shown in Fig. 9(a) and part (b) is for the central irradiation shown in Fig. 9(b).

Image of FIG. 11.
FIG. 11.

The absorption fraction as defined in the text vs time in ps for -polarized irradiations. The lower black curve, for the equivalent slab, is from Fig. 5. The upper curves are for the central and shifted beam irradiations as indicated.

Image of FIG. 12.
FIG. 12.

Plots in the plane for a -polarized central irradiation of the cone shown by the white lines in (a) and the dark (red online) lines in (b). The and axes are in . The filtered Poynting flux, at is shown in (a). In these units, the Poynting flux in vacuum is 3.6 (yellow online). (b) positions of electrons with energies greater than at binned on a mesh with the maximum capped at 100 particles per cell.

Image of FIG. 13.
FIG. 13.

Plots in the plane for a -polarized central irradiation of the cone shown by the solid curves [green online in (a) and red online in (b)]. The and axes are in . The filtered Poynting flux, at is shown in (a). In these units, the Poynting flux in vacuum is 3.6 (yellow online). (b) positions of electrons with energies greater than at binned on a mesh with the maximum capped at 100 particles per cell.

Image of FIG. 14.
FIG. 14.

(a) The filtered Poynting flux, for the -polarized irradiation of the cone shown by the white curves at . The Poynting flux in vacuum is 3.6 (blue online). The and axes are in . (b) Absorption fraction as a function of time in ps: (1) the bottom curve (black online) is for the equivalent slab, (2) the top dotted curve (red online) for the simulation of (a), (3) the highest solid curve (red online) for the central irradiation for the cone of (a), (4) the second highest solid curve (cyan online) for the central Gaussian beam irradiation of the cone of Fig. 13, (5) the third highest solid curve (blue online) for the case shown in Fig. 13(a), and (6) the fourth highest solid curve (magenta online) for the case of Fig. 12(a).

Image of FIG. 15.
FIG. 15.

(a) Simple divot shapes in the plane where the units are in . (b) Absorption fractions as a function of time in ps: (1) the fifth highest curve (black online) is the equivalent slab in -polarization, (2) the lowest curve (black online) is the equivalent slab in -polarization, (3) the highest curve (blue online) for -polarization of deep divot, (4) the second highest curve (magenta online) for -polarization of deep divot, (5) the third highest curve (cyan online) for -polarization of deep divot, (6) the fourth highest curve (red online) for -polarization of deep divot, and (7) the sixth highest curve (magenta online) for -polarization of deep divot.

Image of FIG. 16.
FIG. 16.

Fraction of light absorbed by heated electrons vs time in ps from 3D modeling of deep grooves (laser electric field in the plane of the groove) and divots.

Loading

Article metrics loading...

/content/aip/journal/pop/16/1/10.1063/1.3062832
2009-01-29
2014-04-24
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Particle-in-cell simulations of short-pulse, high intensity light impinging on structured targets
http://aip.metastore.ingenta.com/content/aip/journal/pop/16/1/10.1063/1.3062832
10.1063/1.3062832
SEARCH_EXPAND_ITEM