A temporal model for quasi-phase matching in high-order harmonic generation

Abstract

We present a model for quasi-phase matching (QPM) in high-order harmonic generation (HHG). Using a one-dimensional description, we analyze the time-dependent, ultrafast wave-vector balance to calculate the on-axis harmonic output versus time, from which we obtain the output pulse energy. Considering, as an example, periodically patterned argon gas, as may be provided with a grid in a cluster jet, we calculate the harmonic output during different time intervals within the drive laser pulse duration. We find that identifying a suitable single spatial period is not straightforward due to the complex and ultrafast plasma dynamics that underlies HHG at increased intensities. The maximum on-axis harmonic pulse energy is obtained when choosing the QPM period to phase match HHG at the leading edge of the drive laser pulse.

References in corpus (8)

• Phase matching of high harmonic generation in the soft and hard X-ray regions of the spectrum
• Phase Matching of High-Order Harmonics in Hollow Waveguides
• Bright quasi-phasematched soft x-ray harmonic radiation from Argon ions
• Ultra-broadband extreme-ultraviolet lensless imaging of extended complex structures
• Optical Rotation Quasi-Phase-Matching for Circularly Polarized High Harmonic Generation
• Quasi-phase-matching of high-order-harmonic generation using polarization beating in optical waveguides
• Quasi-phase-matching of high-order-harmonic generation using multimode polarization beating
• Attosecond pulse shaping using partial phase matching

Cited by in corpus (5)

• Multiple ionization of argon via xuv-photon absorption induced by 20-gigawatt high-harmonic pulses
• On the fly control of high harmonic generation using a structured pump beam
• Cluster size dependence of high-order harmonic generation
• Time Resolved Investigation of High Repetition Rate Gas Jet Target For High Harmonic Generation
• Table-top soft x-ray source for XAS experiments with photon energies up to 350 eV