Abstract
Two parallel metal sheets, separated by a vacuum region, support a surface plasma wave whose amplitude is maximum on the two parallel interfaces and minimum in the middle. This mode can be excited by a laser using a glass prism. An electron beam launched into the middle region experiences a longitudinal ponderomotive force due to the surface plasma wave and gets accelerated to velocities of the order of phase velocity of the surface wave. The scheme is viable to achieve beams of tens of keV energy. In the case of a surface plasma wave excited on a single metal-vacuum interface, the field gradient normal to the interface pushes the electrons away from the high field region, limiting the acceleration process. The acceleration energy thus achieved is in agreement with the experimental observations.
Original language | English |
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Article number | 113301 |
Journal | Journal of Applied Physics |
Volume | 102 |
Issue number | 11 |
DOIs | |
State | Published - 2007 |
Externally published | Yes |
Bibliographical note
Funding Information:G.K. is grateful to CSIR for the financial support.
Funding
G.K. is grateful to CSIR for the financial support.
Funders | Funder number |
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Council of Scientific and Industrial Research, India |