Generation of strong optical field in soft X-ray region by using high-order harmonics

  title={Generation of strong optical field in soft X-ray region by using high-order harmonics},
  author={E. J. Takahashi and Yasuo Nabekawa and Hiroki Mashiko and Hiroshi Hasegawa and Akira Suda and Katsumi Midorikawa},
  journal={IEEE Journal of Selected Topics in Quantum Electronics},
For further development of a variety of applications, one of the most important issues is the improvement of output harmonic energy and conversion efficiency. We review our work on the energy scaling of high-order harmonic generation based on phase-matching using a loosely focused beam. Our harmonic energy scaling method can be universally applied to harmonic generation in the neutral rare gas target. In addition, we demonstrate a new concept for spatial separation between the high-energy pump… CONTINUE READING
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