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Optical Excitation and Trapping of Kr81
- Source :
- Physical Review Letters. 127
- Publication Year :
- 2021
- Publisher :
- American Physical Society (APS), 2021.
-
Abstract
- We have realized optical excitation, trapping, and detection of the radioisotope $^{81}\mathrm{Kr}$ with an isotopic abundance of 0.9 ppt. The 124 nm light needed for the production of metastable atoms is generated by a resonant discharge lamp. Photon transport through the optically thick krypton gas inside the lamp is simulated and optimized to enhance both brightness and resonance. We achieve a state-of-the-art $^{81}\mathrm{Kr}$ loading rate of $1800\text{ }\text{ }\mathrm{atoms}/\mathrm{h}$, which can be further scaled up by adding more lamps. The all-optical approach overcomes the limitations on precision and sample size of radiokrypton dating, enabling new applications in the earth sciences, particularly for dating of polar ice cores.
- Subjects :
- Brightness
Materials science
Gas-discharge lamp
Photon
Physics::Instrumentation and Detectors
Atomic Physics (physics.atom-ph)
Krypton
FOS: Physical sciences
Physics::Optics
General Physics and Astronomy
chemistry.chemical_element
Resonance
Trapping
Physics - Atomic Physics
law.invention
chemistry
law
Production (computer science)
Physics::Atomic Physics
Atomic physics
Excitation
Subjects
Details
- ISSN :
- 10797114 and 00319007
- Volume :
- 127
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi.dedup.....1b5023fa53e35ea01bbe9a14a7a09a0f
- Full Text :
- https://doi.org/10.1103/physrevlett.127.023201