dorsal/arxiv
View SchemaSelective excitation of metastable atomic states by femto- and attosecond laser pulses
| Authors | A. D. Kondorskiy, L. P. Presnyakov, Yu. Ralchenko |
|---|---|
| Categories | |
| ArXiv ID | physics/0609074 |
| URL | https://arxiv.org/abs/physics/0609074 |
| DOI | 10.1103/PhysRevA.74.033410 |
| Journal | Phys Rev A 74(3), 033410 (2006) |
Abstract
The possibility of achieving highly selective excitation of low metastable states of hydrogen and helium atoms by using short laser pulses with reasonable parameters is demonstrated theoretically. Interactions of atoms with the laser field are studied by solving the close-coupling equations without discretization. The parameters of laser pulses are calculated using different kinds of optimization procedures. For the excitation durations of hundreds of femtoseconds direct optimization of the parameters of one and two laser pulses with Gaussian envelopes is used to introduce a number of simple schemes of selective excitation. To treat the case of shorter excitation durations, optimal control theory is used and the calculated optimal fields are approximated by sequences of pulses with reasonable shapes. A new way to achieve selective excitation of metastable atomic states by using sequences of attosecond pulses is introduced.
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"abstract": "The possibility of achieving highly selective excitation of low metastable\nstates of hydrogen and helium atoms by using short laser pulses with reasonable\nparameters is demonstrated theoretically. Interactions of atoms with the laser\nfield are studied by solving the close-coupling equations without\ndiscretization. The parameters of laser pulses are calculated using different\nkinds of optimization procedures. For the excitation durations of hundreds of\nfemtoseconds direct optimization of the parameters of one and two laser pulses\nwith Gaussian envelopes is used to introduce a number of simple schemes of\nselective excitation. To treat the case of shorter excitation durations,\noptimal control theory is used and the calculated optimal fields are\napproximated by sequences of pulses with reasonable shapes. A new way to\nachieve selective excitation of metastable atomic states by using sequences of\nattosecond pulses is introduced.",
"arxiv_id": "physics/0609074",
"authors": [
"A. D. Kondorskiy",
"L. P. Presnyakov",
"Yu. Ralchenko"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.74.033410",
"journal_ref": "Phys Rev A 74(3), 033410 (2006)",
"title": "Selective excitation of metastable atomic states by femto- and attosecond laser pulses",
"url": "https://arxiv.org/abs/physics/0609074"
},
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