Ponderomotive electron acceleration using surface plasmon waves excited with femtosecond laser pulses

被引：46

作者：

Irvine, SE ^{[1
]}

Elezzabi, AY ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Ultrafast Photon & Nanoopt Lab, Edmonton, AB T6G 2V4, Canada

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 26期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1063/1.1946202

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the ponderomotive acceleration of electrons using surface plasmon (SP) waves launched on Ag and Au films. High-energy electrons, up to 2 keV, are generated in the high spatial gradient of the SP field. Acceleration gradients of similar to 8 GeV/m are produced using 30 GW/cm(2), 800 nm amplified 30 fs laser pulses. Investigation of the photoemission characteristics of these metal films reveals a distinct transition between the multiphoton regime and a laser-induced field emission regime. Results of the experiment are in good agreement with those predicted with test particle code, which is based on finite-difference time-domain simulation and incorporates the Drude dielectric function and photoemission properties of the metallic films. (c) American Institute of Physics.

引用

页码：1 / 3

页数：3

共 12 条

[1] OBSERVATION OF SURFACE-ENHANCED MULTIPHOTON PHOTOEMISSION FROM METAL-SURFACES IN THE SHORT-PULSE LIMIT [J].