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Laser sources for efficient two-step Positronium excitation to Rydberg states
Antihydrogen production by charge exchange reaction between Positronium atoms and antiprotons benefits from an efficient excitation of Positronium atoms to high- n levels (Rydberg levels). A two-step optical excitation, the first from ground to n = 3 and the second from this level to a Rydberg level...
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Published in: | Journal of molecular structure 2011-05, Vol.993 (1), p.495-499 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Antihydrogen production by charge exchange reaction between Positronium atoms and antiprotons benefits from an efficient excitation of Positronium atoms to high-
n levels (Rydberg levels). A two-step optical excitation, the first from ground to
n
=
3 and the second from this level to a Rydberg level, is proposed and a proper laser system to be developed is discussed. The requirements on the energy and bandwidth of the excitation laser suggest the use of optical parametric generation technology for both wavelengths. The laser system is composed of two subsystems: one for the generation of 205
nm radiation and the other for the generation of 1670
nm radiation. We report on the progress towards the realization of the short wavelength source. |
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ISSN: | 0022-2860 1872-8014 |
DOI: | 10.1016/j.molstruc.2011.01.064 |