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Optica Publishing Group
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2005),
  • paper JTuD7

Generation of Efficient High Harmonics in an Orthogonally Polarized Two-Color Laser Field

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Abstract

Highly efficient high-harmonic generation was achieved in helium using an orthogonally polarized two-color laser field that consisted of the fundamental and second harmonic of a femtosecond Ti: Sapphire laser. By applying a higher intensity s econd harmonic, the harmonics in the two-color field were stronger than those obtained in the fundamental field by more than two orders of magnitude. The conversion efficiency was as high as 5×10−5 for the 38th harmonic at 21.6 nm.

© 2005 Optical Society of America

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