Optical Gating with Asymmetric Field Ratios for Isolated Attosecond Pulse Generation
Journal Article - Open Access
University of Central Florida Orlando United States
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A technique to improve double optical gating for generating isolated attosecond pulses is introduced. In this method, the ratio between the amplitudes of the counter-rotating pulses is altered to decrease the field strength prior to the linearly-polarized gate cycle. The result is a decrease in the pre-ionization of the gas target used for generating high-order harmonics. In addition to improving phase matching and increasing the saturation intensity, this development also allows isolated attosecond pulse production with longer driving laser pulses.
- Lasers and Masers