Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/114917
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Type: | Journal article |
Title: | Laser-based metastable krypton generation |
Author: | Dakka, M.A. Tsiminis, G. Glover, R.D. Perrella, C. Moffatt, J. Spooner, N.A. Sang, R.T. Light, P.S. Luiten, A.N. |
Citation: | Physical Review Letters, 2018; 121(9) |
Publisher: | American Physical Society |
Issue Date: | 2018 |
ISSN: | 0031-9007 1079-7114 |
Statement of Responsibility: | M. A. Dakka, G. Tsiminis, R. D. Glover, C. Perrella, J. Moffatt, N. A. Spooner, R. T. Sang, P. S. Light, and A. N. Luiten |
Abstract: | We demonstrate the generation of metastable krypton in the long-lived 1s^{5} state using laser excitation. The atoms are excited through a two-photon absorption process into the 2p^{6} state using a pulsed optical parametric oscillator laser operating near 215 nm, after which the atoms decay quickly into the metastable state with a branching ratio of 75%. The interaction dynamics are modeled using density matrix formalism and, by combining this with experimental observations, we are able to calculate photoionization and two-photon absorption cross sections. When compared to traditional approaches to metastable production, this approach shows great potential for high-density metastable krypton production with minimal heating of the sample. Here, we show metastable production efficiencies of up to 2% per pulse. The new experimental results gained here, when combined with the density matrix model we have developed, suggest that fractional efficiencies up to 30% are possible under optimal conditions. |
Rights: | © 2018 American Physical Society |
DOI: | 10.1103/PhysRevLett.121.093201 |
Grant ID: | http://purl.org/au-research/grants/arc/LE160100027 http://purl.org/au-research/grants/arc/DE120102028 |
Published version: | http://dx.doi.org/10.1103/physrevlett.121.093201 |
Appears in Collections: | Aurora harvest 3 Physics publications |
Files in This Item:
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hdl_114917.pdf | Submitted Version | 2.65 MB | Adobe PDF | View/Open |
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