Population, alignment, and coherence of the foil-excited<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>n</mml:mi><mml:mo>=</mml:mo><mml:mn>2</mml:mn><mml:mn /></mml:math>hydrogen atoms: Polarization observation of the field-dependent quantum beats in the Lyman-α line

Kimura, Yasuyuki; Nishida, Tetsuo; Ishii, K.

doi:10.1103/physreva.56.4612

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…The mixing of hole states caused by tunnelling is weak due to the large heavy-hole mass along the SL axis 4 , so we use below a set of degenerate hole states. Each elementary cell, with two wells centred at z = 0 and z = a, respectively, contains two levels with energies 0 and − h .…”

Section: Two-miniband Dynamicsmentioning

confidence: 99%

“…Quantum beats are the doublequantum-well analogue of Bloch oscillations. The study of such phenomena in different semiconductor systems has attracted considerable attention during the last decade [1][2][3][4]. Tunnel-coupled heterostructures are among the most actively investigated objects in this area (see references [5] and [6] for a review)-including double quantum wells and superlattices subjected to transverse electric fields.…”

Section: Introductionmentioning

confidence: 99%

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Quantum beats induced by an ultra-short excitation in a two-miniband superlattice

Vasko

Hernández‐Cabrera

Aceituno

2001

J. Phys.: Condens. Matter

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The coherent response of electrons in a double-well superlattice with two minibands when the superlattice is photoexcited with an ultra-short laser pulse is studied theoretically. Since the gap between the two minibands oscillates with the variation of the quasimomentum, not only do quantum beats - which depend on the parameters of the superlattice - occur, but also a non-dissipative quenching of the photoinduced current oscillations appears over time. These modifications of the oscillations are examined within the framework of the Kane model, using the parabolic approximation for electron and heavy-hole states and neglecting the Coulomb interaction. Numerical calculations of the carrier coherent dynamics are performed for the case of a δ-pulse excitation with a phenomenologically introduced damping factor.

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Section: Two-miniband Dynamicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quantum beats induced by an ultra-short excitation in a two-miniband superlattice

Vasko

Hernández‐Cabrera

Aceituno

2001

J. Phys.: Condens. Matter

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“…Stark beat studies for hydrogen [13][14][15], alkali metal [16][17][18] and highly charged carbon [19] were performed with beam foil excitation. The atom polarizabilities [20,21] and molecule electronic dipole moments [22][23][24][25][26] have been investigated by analysis of electric field dependence of the beat frequency using pulsed laser excitation.…”

Section: Introductionmentioning

confidence: 99%

The Stark Quantum Beat of Ne Fluorescence in the Vacuum Ultra Violet Region

et al. 2003

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The Stark quantum beats between the M ¼ 0 and M j j ¼ 1 magnetic sublevels of Ne atom Rydberg states were observed in electric fields up to 5 kV/cm, using synchrotron vacuum ultra violet radiation. It was confirmed that the beat frequencies depend on the electric field strength squared. The angular correlation of the fluorescence intensities and the Stark beat amplitudes of some Rydberg states were measured and the experimental results agree with the theoretical predictions. The tensor polarizabilities of the 26 Ne Rydberg states were determined from the field dependence of the M ¼ 0 and M j j ¼ 1 splitting. A comparison between the experimental frequencies and the values calculated using the jl coupling scheme and the MQDT analysis was attempted.Ã

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Beam current-density dependence of the polarization of emission lines from foil-excited atoms: Beam dose dependent or field dependent

Kimura

Ishii

1998

Phys. Rev. A

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Population, alignment, and coherence of the foil-excitedn=2hydrogen atoms: Polarization observation of the field-dependent quantum beats in the Lyman-α line

Cited by 4 publications

References 14 publications

Quantum beats induced by an ultra-short excitation in a two-miniband superlattice

Quantum beats induced by an ultra-short excitation in a two-miniband superlattice

The Stark Quantum Beat of Ne Fluorescence in the Vacuum Ultra Violet Region

Beam current-density dependence of the polarization of emission lines from foil-excited atoms: Beam dose dependent or field dependent

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