High-accuracy deep-UV Ramsey-comb spectroscopy in krypton
| Autor: | R. K. Altmann, Sandrine Galtier, Kjeld S. E. Eikema, L. S. Dreissen |
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| Přispěvatelé: | Atoms, Molecules, Lasers, LaserLaB - Physics of Light |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Physics and Astronomy (miscellaneous)
General Physics and Astronomy chemistry.chemical_element Physics and Astronomy(all) 01 natural sciences law.invention 010309 optics Optics law 0103 physical sciences SDG 7 - Affordable and Clean Energy 010306 general physics Spectroscopy Quantum optics Physics Isotope Precision spectroscopy business.industry Krypton General Engineering Laser Wavelength chemistry Atomic physics business Excitation |
| Zdroj: | Galtier, S, Altmann, R K, Dreissen, L S & Eikema, K S E 2017, ' High-accuracy deep-UV Ramsey-comb spectroscopy in krypton ', Applied Physics B. Lasers and Optics, vol. 123, no. 1, 16, pp. 1-10 . https://doi.org/10.1007/s00340-016-6584-8 Applied Physics B. Lasers and Optics, 123(1):16, 1-10. Springer Verlag |
| ISSN: | 1432-0649 0946-2171 |
| DOI: | 10.1007/s00340-016-6584-8 |
| Popis: | In this paper, we present a detailed account of the first precision Ramsey-comb spectroscopy in the deep UV. We excite krypton in an atomic beam using pairs of frequency-comb laser pulses that have been amplified to the millijoule level and upconverted through frequency doubling in BBO crystals. The resulting phase-coherent deep-UV pulses at 212.55 nm are used in the Ramsey-comb method to excite the two-photon $$4p^6 \rightarrow 4p^5 5p [1/2 ]_0$$ transition. For the $${}^{84}\hbox {Kr}$$ isotope, we find a transition frequency of 2829833101679(103) kHz. The fractional accuracy of $$3.7\,\times$$ $$10^{-11}$$ is 34 times better than previous measurements, and also the isotope shifts are measured with improved accuracy. This demonstration shows the potential of Ramsey-comb excitation for precision spectroscopy at short wavelengths. |
| Databáze: | OpenAIRE |
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