2012
DOI: 10.1109/jstqe.2010.2102006
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Interference Stabilization Revisited

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Cited by 28 publications
(24 citation statements)
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“…In general, the emergence of strong, symmetry forbidden, lines in high harmonic spectra is a tell-tale sign of symmetry breaking induced by the underlying attosecond electronic [54,55] or vibronic dynamics [56][57][58]. Specifically, we show that symmetry forbidden lines in high harmonic spectra generated in bi-circular fields are sensitive to frustrated tunnel ionization [59][60][61][62][63][64] and the presence of strongly laser-driven Rydberg states, the so-called 'bound states of the free electron' [65], which are able to survive intense laser fields [60][61][62][63][64][66][67][68][69] even when the ground state of the neutral is completely depleted [61,70].…”
Section: Introductionmentioning
confidence: 99%
“…In general, the emergence of strong, symmetry forbidden, lines in high harmonic spectra is a tell-tale sign of symmetry breaking induced by the underlying attosecond electronic [54,55] or vibronic dynamics [56][57][58]. Specifically, we show that symmetry forbidden lines in high harmonic spectra generated in bi-circular fields are sensitive to frustrated tunnel ionization [59][60][61][62][63][64] and the presence of strongly laser-driven Rydberg states, the so-called 'bound states of the free electron' [65], which are able to survive intense laser fields [60][61][62][63][64][66][67][68][69] even when the ground state of the neutral is completely depleted [61,70].…”
Section: Introductionmentioning
confidence: 99%
“…Our work demonstrates that these unusual states of neutral atoms can be exploited to create a general ultrafast gain mechanism during laser filamentation.It is often assumed that photo-ionization happens faster in more intense fields. Yet, since late 1980s, theorists have speculated that atomic states become more stable when the strength of the laser field substantially exceeds the Coulomb attraction to the ionic core [1,[6][7][8][9][10][11][12][13][14]. The electron becomes nearly but not completely free: rapidly oscillating in the laser field, it still feels residual attraction to the core, which keeps it bound.…”
mentioning
confidence: 99%
“…Prior simulations show that the principal quantum number of Rydberg states increases with laser intensity and wavelength [15][16][17][18]. This has previously been explained by invoking the following dependence [5,16]:…”
Section: The Quantum Number Distributionmentioning
confidence: 92%
“…It has been observed that the principal quantum numbers shift to higher values for larger intensities and larger wavelengths of the laser pulse [15][16][17][18]. In this work, after introducing the basic equations and concepts of Rydberg states in section II, we will investigate the effect that the pulse duration of the laser has on the distribution of quantum numbers in section III.…”
Section: Introductionmentioning
confidence: 99%