Quantum theory of terahertz emission due to ultrashort pulse ionization of gases

K. Schuh; M. Scheller; J. Hader; J. V. Moloney; S. W. Koch

doi:10.1103/PhysRevE.88.063102

Quantum theory of terahertz emission due to ultrashort pulse ionization of gases

K. Schuh, M. Scheller, J. Hader, J. V. Moloney, S. W. Koch

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5 Scopus citations

Abstract

A microscopic model is developed to analyze terahertz (THz) emission after ultrashort one- and two-color laser-pulse excitations of an atomic gas. Optical Bloch equations are derived to describe the pulse-induced ionization in the many-atom system including the Coulombic scattering of the ionized electrons. The model captures the continuous transition between the tunneling and the multiphoton ionization regimes. Numerical evaluations for a wide range of pulse configurations identify optimized excitation conditions for strong THz emission.

Original language	English (US)
Article number	063102
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	88
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevE.88.063102
State	Published - Dec 5 2013

ASJC Scopus subject areas

Statistical and Nonlinear Physics
Statistics and Probability
Condensed Matter Physics

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10.1103/PhysRevE.88.063102

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abstract = "A microscopic model is developed to analyze terahertz (THz) emission after ultrashort one- and two-color laser-pulse excitations of an atomic gas. Optical Bloch equations are derived to describe the pulse-induced ionization in the many-atom system including the Coulombic scattering of the ionized electrons. The model captures the continuous transition between the tunneling and the multiphoton ionization regimes. Numerical evaluations for a wide range of pulse configurations identify optimized excitation conditions for strong THz emission.",

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T1 - Quantum theory of terahertz emission due to ultrashort pulse ionization of gases

AU - Schuh, K.

AU - Scheller, M.

AU - Hader, J.

AU - Moloney, J. V.

AU - Koch, S. W.

PY - 2013/12/5

Y1 - 2013/12/5

N2 - A microscopic model is developed to analyze terahertz (THz) emission after ultrashort one- and two-color laser-pulse excitations of an atomic gas. Optical Bloch equations are derived to describe the pulse-induced ionization in the many-atom system including the Coulombic scattering of the ionized electrons. The model captures the continuous transition between the tunneling and the multiphoton ionization regimes. Numerical evaluations for a wide range of pulse configurations identify optimized excitation conditions for strong THz emission.

AB - A microscopic model is developed to analyze terahertz (THz) emission after ultrashort one- and two-color laser-pulse excitations of an atomic gas. Optical Bloch equations are derived to describe the pulse-induced ionization in the many-atom system including the Coulombic scattering of the ionized electrons. The model captures the continuous transition between the tunneling and the multiphoton ionization regimes. Numerical evaluations for a wide range of pulse configurations identify optimized excitation conditions for strong THz emission.

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JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

IS - 6

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ER -

Quantum theory of terahertz emission due to ultrashort pulse ionization of gases

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