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Conferences > IQEC > 1994 > QWG > QWG2
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1994),
  • paper QWG2

Observations of ponderomotively accelerated electrons from the focus of a very-high-intensity laser

C. I. Moore, J. P. Knauer, and D. D. Meyerhofer

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Abstract

Electrons emitted from a high-intensity laser focus (~1014 W/cm2) have been observed by Freeman et al.1 At this intensity, the electrons energy distribution was seen to have a series of low-energy (~1-eV) peaks separated by the photon energy. These are above-threshold-ionization (ATI) peaks and were observed to shift by a few electron volts as the laser pulse width was increased from a short pulse (0.5 ps) to a long pulse (50 ps). This shift is explained by the ponderomotive potential Φj.

© 1994 Optical Society of America

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