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Phase of the Atomic Polarization In High-order Harmonic-generation

Lewenstein, M; Salieres, P and L'Huillier, Anne LU (1995) In Physical Review A (Atomic, Molecular and Optical Physics) 52(6). p.4747-4754
Abstract
A recently formulated theory of high-order harmonic generation by low-frequency laser fields [Anne L'Huillier et al., Phys. Rev. A 48, R3433 (1993)] allows us to study the phase of the induced atomic dipole moment. We show that this phase exhibits a piecewise-linear dependence on the laser intensity. This dependence can be interpreted in quasiclassical terms, and is related to the action acquired by the electron during its motion in the laser held. The value of the phase, however, is also affected by the quantum effects of tunneling, diffusion, and interference. The phase of the dipole moment considerably influences the conversion efficiency, as well as the coherence properties, of the harmonics generated in macroscopic media.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
52
issue
6
pages
4747 - 4754
publisher
American Physical Society (APS)
external identifiers
  • scopus:11744375260
ISSN
1050-2947
DOI
10.1103/PhysRevA.52.4747
language
English
LU publication?
yes
id
88a33baf-761e-4f4f-9d7f-b93620d8f909 (old id 2258755)
date added to LUP
2012-02-18 11:33:58
date last changed
2017-08-20 04:37:39
@article{88a33baf-761e-4f4f-9d7f-b93620d8f909,
  abstract     = {A recently formulated theory of high-order harmonic generation by low-frequency laser fields [Anne L'Huillier et al., Phys. Rev. A 48, R3433 (1993)] allows us to study the phase of the induced atomic dipole moment. We show that this phase exhibits a piecewise-linear dependence on the laser intensity. This dependence can be interpreted in quasiclassical terms, and is related to the action acquired by the electron during its motion in the laser held. The value of the phase, however, is also affected by the quantum effects of tunneling, diffusion, and interference. The phase of the dipole moment considerably influences the conversion efficiency, as well as the coherence properties, of the harmonics generated in macroscopic media.},
  author       = {Lewenstein, M and Salieres, P and L'Huillier, Anne},
  issn         = {1050-2947},
  language     = {eng},
  number       = {6},
  pages        = {4747--4754},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Phase of the Atomic Polarization In High-order Harmonic-generation},
  url          = {http://dx.doi.org/10.1103/PhysRevA.52.4747},
  volume       = {52},
  year         = {1995},
}