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Field structure and electron acceleration in a laser beam of a high-order Hermite-Gaussian mode
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10.1063/1.2719708
/content/aip/journal/jap/101/8/10.1063/1.2719708
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/8/10.1063/1.2719708
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Contour maps of the axial electric field amplitude of some low-order HG laser beams, with and . (a) Shows the mode in plane and (b) shows as a function of along the line . (c) and (d) show the mode, (e) and (f) the mode.

Image of FIG. 2.
FIG. 2.

The minimum phase velocity distribution of the axial electric field . Values are distinguished by the level of shading, dark indicating small values, and bright indicating large. (a) Is for the laser beam of the mode with . The top inset of (a) shows as a function of along line (solid line) and along line , (dotted line). The right inset of (a) shows as a function of along line (solid line) and along line , (dotted line). (b) Shows the corresponding quantities for a laser beam with the mode.

Image of FIG. 3.
FIG. 3.

(Color online) The phase velocity along the trajectory and corresponding electric field amplitude distribution for different order mode laser beams with and . The solid lines, dotted lines, dashed lines, and dot-dashed lines are for , respectively. (a) The phase velocity of along the trajectory as a function of along the line . (b) The amplitude of as a function of along the line . (c) The phase velocity of parallel with the trajectory as a function of along line . (d) The amplitude as a function of along line .

Image of FIG. 4.
FIG. 4.

(Color online) The phase velocity parallel with the trajectory as a function of along line for different beam waist (solid line), (dashed line), and (dotted line). The dot-dashed line denotes the speed of light . (a) Shows the mode, and (b) shows the mode.

Image of FIG. 5.
FIG. 5.

Dependence of the maximum net energy exchange on the incident angle . Triangles indicate the mode, circles are the mode, and squares are the , where , , and . The incoming momentum is (a) , (b) , and (c) .

Image of FIG. 6.
FIG. 6.

(Color online) Typical electron dynamics for the case that the electron gets an energy gain of in a mode laser beam with , , and . (a) The distribution of of a mode laser beam in the plane, where is the maximum longitudinal electric field amplitude in the whole time range. Values are distinguished by the level of shading, dark indicating small values and bright indicating large values. The dotted line shows the electron trajectory in the plane. (b) Electron energy as a function of . (c) The longitudinal (dotted line) and transverse (solid line) electric fields experienced by the electron as a function of . Other parameters are , , and .

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/content/aip/journal/jap/101/8/10.1063/1.2719708
2007-04-26
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Field structure and electron acceleration in a laser beam of a high-order Hermite-Gaussian mode
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/8/10.1063/1.2719708
10.1063/1.2719708
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