Complex polarisabilities and hyperpolarisabilities of atoms

Bromley, M. W. J., Grunefeld, S. J., Rossi, J. M., Berengut, J. C., Tang, L. Y., Jiang, J., Cheng, Y. and Mitroy, J. (2015). Complex polarisabilities and hyperpolarisabilities of atoms. In: Journal of Physics: Conference Series. 29th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2015, Toledo Spain, (). 22-28th July, 2015. doi:10.1088/1742-6596/635/9/092078


Author Bromley, M. W. J.
Grunefeld, S. J.
Rossi, J. M.
Berengut, J. C.
Tang, L. Y.
Jiang, J.
Cheng, Y.
Mitroy, J.
Title of paper Complex polarisabilities and hyperpolarisabilities of atoms
Conference name 29th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2015
Conference location Toledo Spain
Conference dates 22-28th July, 2015
Convener ICPEAC
Proceedings title Journal of Physics: Conference Series   Check publisher's open access policy
Journal name Journal of Physics: Conference Series   Check publisher's open access policy
Place of Publication Bristol, United Kingdom
Publisher Institute of Physics Publishing
Publication Year 2015
Sub-type Fully published paper
DOI 10.1088/1742-6596/635/9/092078
Open Access Status DOI
ISSN 1742-6596
1742-6588
Volume 635
Issue 9
Total pages 1
Language eng
Abstract/Summary The complex dipole polarisabilities of alkali atoms are computed for low-lying eigenstates. We present a unified method of calculation of the real part of the polarisability as well as two different imaginary contributions to the polarisability. One imaginary polarisability is related to the resonant damping of the cross-section both below and above threshold, whilst the other imaginary polarisability describes the photoionisation cross-section above threshold. We also present preliminary calculations of the complex hyperpolarisabilities of atomic clocks and how they are impacted by the linear and non-linear photon-atom interactions.
Subjects 3100 Physics and Astronomy
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Sub-type: Fully published paper
Collections: School of Mathematics and Physics
Non HERDC
 
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