A theoretical survey on atomic and laser parameters for efficient harmonic generation

The authors investigate the OHG efficiency by varying the frequency of the input laser, With high frequency lasers electrons need less time to travel back and forth and the quantum diffusion may be less important. We also study the effect of the intensity of the laser. Optimum laser intensity is expected to exist since the higher the intensity of the laser can ionize atoms too fast, which leaves not many electrons remaining nearby to recombine with the atomic core to result in emission of radiation.