38 citations · 130 across the 5 of their papers we have counts for
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Pulse-shape control of two-color interference in high-order-harmonic generation
K. R. Hamilton, H. W. van der Hart, A. C. Brown
We report on calculations of harmonic generation by neon in a mixed (800-nm + time-delayed 400-nm) laser pulse scheme. In contrast with previous studies we employ a short (few-cycl…
XUV-initiated high harmonic generation: driving inner valence electrons using below-threshold-energy XUV light
A. C. Brown, H. W. van der Hart
We propose a novel scheme for resolving the contribution of inner- and outer-valence electrons in XUV-initiated high-harmonic generation in neon. By probing the atom with a low ene…
Harmonic generation of noble-gas atoms in the Near-IR regime using ab-initio time-dependent R-matrix theory
O. Hassouneh, A. C. Brown, H. W. van der Hart
We demonstrate the capability of ab-initio time-dependent R-matrix theory to obtain accurate harmonic generation spectra of noble-gas atoms at Near-IR wavelengths between 1200 and…
Multichannel Interference In High-Order Harmonic Generation From Ne(+) Driven By Ultrashort Intense Laser Pulse
O. Hassouneh, A. C. Brown, H. W. van der Hart
We apply the time-dependent R-matrix method to investigate harmonic generation from Ne(+) at a wavelength of 390 nm and intensities up to 10(15) Wcm(-2). The 1s(2)2s(2)2p(4) (3)P(e…
Interference between competing pathways in harmonic generation
A. C. Brown, S. Hutchinson, M. A. Lysaght +1
We investigate the influence of the autoionizing 3s3p(6)nl resonances on the fifth harmonic generated by 200 - 240 nm laser fields interacting with Ar. To determine the influence o…