Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 203201 |
| Fachzeitschrift | Physical Review Letters |
| Jahrgang | 119 |
| Ausgabenummer | 20 |
| Publikationsstatus | Veröffentlicht - 15 Nov. 2017 |
Abstract
High-harmonic spectroscopy driven by circularly polarized laser pulses and their counterrotating second harmonic is a new branch of attosecond science which currently lacks quantitative interpretations. We extend this technique to the midinfrared regime and record detailed high-harmonic spectra of several rare-gas atoms. These results are compared with the solution of the Schrödinger equation in three dimensions and calculations based on the strong-field approximation that incorporate accurate scattering-wave recombination matrix elements. A quantum-orbit analysis of these results provides a transparent interpretation of the measured intensity ratios of symmetry-allowed neighboring harmonics in terms of (i) a set of propensity rules related to the angular momentum of the atomic orbitals, (ii) atom-specific matrix elements related to their electronic structure, and (iii) the interference of the emissions associated with electrons in orbitals corotating or counterrotating with the laser fields. These results provide the foundation for a quantitative understanding of bicircular high-harmonic spectroscopy.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Physical Review Letters, Jahrgang 119, Nr. 20, 203201, 15.11.2017.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Signatures of Electronic Structure in Bicircular High-Harmonic Spectroscopy
AU - Baykusheva, Denitsa
AU - Brennecke, Simon
AU - Lein, Manfred
AU - Wörner, Hans Jakob
N1 - Funding information: We thank Holger Herburger for his contributions to the theoretical understanding of the reported spectra. D. B. and H. J. W. acknowledge support from an ERC starting grant (Project No. 307270-ATTOSCOPE) and the Swiss National Science Foundation (SNSF) through Project No. 200021_159875. S. B. and M. L. acknowledge support from the Deutsche Forschungsgemeinschaft in the frame of the Priority Programme Quantum Dynamics in Tailored Intense Fields. S. B. thanks the Studienstiftung des deutschen Volkes for financial support.
PY - 2017/11/15
Y1 - 2017/11/15
N2 - High-harmonic spectroscopy driven by circularly polarized laser pulses and their counterrotating second harmonic is a new branch of attosecond science which currently lacks quantitative interpretations. We extend this technique to the midinfrared regime and record detailed high-harmonic spectra of several rare-gas atoms. These results are compared with the solution of the Schrödinger equation in three dimensions and calculations based on the strong-field approximation that incorporate accurate scattering-wave recombination matrix elements. A quantum-orbit analysis of these results provides a transparent interpretation of the measured intensity ratios of symmetry-allowed neighboring harmonics in terms of (i) a set of propensity rules related to the angular momentum of the atomic orbitals, (ii) atom-specific matrix elements related to their electronic structure, and (iii) the interference of the emissions associated with electrons in orbitals corotating or counterrotating with the laser fields. These results provide the foundation for a quantitative understanding of bicircular high-harmonic spectroscopy.
AB - High-harmonic spectroscopy driven by circularly polarized laser pulses and their counterrotating second harmonic is a new branch of attosecond science which currently lacks quantitative interpretations. We extend this technique to the midinfrared regime and record detailed high-harmonic spectra of several rare-gas atoms. These results are compared with the solution of the Schrödinger equation in three dimensions and calculations based on the strong-field approximation that incorporate accurate scattering-wave recombination matrix elements. A quantum-orbit analysis of these results provides a transparent interpretation of the measured intensity ratios of symmetry-allowed neighboring harmonics in terms of (i) a set of propensity rules related to the angular momentum of the atomic orbitals, (ii) atom-specific matrix elements related to their electronic structure, and (iii) the interference of the emissions associated with electrons in orbitals corotating or counterrotating with the laser fields. These results provide the foundation for a quantitative understanding of bicircular high-harmonic spectroscopy.
UR - http://www.scopus.com/inward/record.url?scp=85034642098&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.119.203201
DO - 10.1103/PhysRevLett.119.203201
M3 - Article
C2 - 29219334
AN - SCOPUS:85034642098
VL - 119
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 20
M1 - 203201
ER -