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Rusimova KR, Slavov D, Pradaux-Caggiano F, Collins JT, Gordeev SN, Carbery DR, Wadsworth WJ, Mosley PJ, Valev VK. Atomic dispensers for thermoplasmonic control of alkali vapor pressure in quantum optical applications. Nat Commun 2019; 10:2328. [PMID: 31127090 PMCID: PMC6534619 DOI: 10.1038/s41467-019-10158-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 04/18/2019] [Indexed: 11/25/2022] Open
Abstract
Alkali metal vapors enable access to single electron systems, suitable for demonstrating fundamental light-matter interactions and promising for quantum logic operations, storage and sensing. However, progress is hampered by the need for robust and repeatable control over the atomic vapor density and over the associated optical depth. Until now, a moderate improvement of the optical depth was attainable through bulk heating or laser desorption – both time-consuming techniques. Here, we use plasmonic nanoparticles to convert light into localized thermal energy and to achieve optical depths in warm vapors, corresponding to a ~16 times increase in vapor pressure in less than 20 ms, with possible reload times much shorter than an hour. Our results enable robust and compact light-matter devices, such as efficient quantum memories and photon-photon logic gates, in which strong optical nonlinearities are crucial. Robust and fast control of the atomic vapor pressure in alkali vapor cells would greatly extend their use for many quantum technologies. Here, the authors exploit plasmonic absorption in a cell coating containing gold nanoparticles to control the vapor pressure with milliseconds response time.
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Affiliation(s)
- Kristina R Rusimova
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK.,Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
| | - Dimitar Slavov
- Institute of Electronics, Bulgarian Academy of Sciences, Sofia, 1784, Bulgaria
| | - Fabienne Pradaux-Caggiano
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK.,Department of Chemistry, University of Bath, Bath, BA2 7AY, UK
| | - Joel T Collins
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
| | - Sergey N Gordeev
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
| | - David R Carbery
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK.,Department of Chemistry, University of Bath, Bath, BA2 7AY, UK
| | - William J Wadsworth
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
| | - Peter J Mosley
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
| | - Ventsislav K Valev
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK. .,Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK.
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Barker DS, Norrgard EB, Scherschligt J, Fedchak JA, Eckel S. Light-induced atomic desorption of lithium. PHYSICAL REVIEW. A 2018; 98:043412. [PMID: 30984896 PMCID: PMC6460927 DOI: 10.1103/physreva.98.043412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We demonstrate loading of a Li magneto-optical trap using light-induced atomic desorption. The magnetooptical trap confines up to approximately 4 × 104 7Li atoms with loading rates up to approximately 4 × 103 atoms per second. We study the Li desorption rate as a function of the desorption wavelength and power. The extracted wavelength threshold for desorption of Li from fused silica is approximately 470 nm. In addition to desorption of lithium, we observe light-induced desorption of background gas molecules. The vacuum pressure increase due to the desorbed background molecules is ≲ 50 % and the vacuum pressure decreases back to its base value with characteristic timescales on the order of seconds when we extinguish the desorption light. By examining both the loading and decay curves of the magneto-optical trap, we are able to disentangle the trap decay rates due to background gases and desorbed lithium. Our results show that light-induced atomic desorption can be a viable Li vapor source for compact devices and sensors.
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Affiliation(s)
- D S Barker
- Sensor Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - E B Norrgard
- Sensor Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - J Scherschligt
- Sensor Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - J A Fedchak
- Sensor Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - S Eckel
- Sensor Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
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Cappello A, de Mauro C, Bogi A, Burchianti A, Di Renzone S, Khanbekyan A, Marinelli C, Mariotti E, Tomassetti L, Moi L. Light induced atomic desorption from dry-film coatings. J Chem Phys 2007; 127:044706. [PMID: 17672716 DOI: 10.1063/1.2756829] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report the first experimental evidence of nonthermal light induced atomic desorption (LIAD) from octadecyltrichlorosilane dry film. The experiment has been made with Rb confined in a coated cell kept at room temperature. A detailed study of the main features of LIAD effect has been made by varying intensity and wavelength of desorbing light. A discussion about the differences and similarities with other organic films that were studied first is reported. This result is important as it expands the list of materials showing such an effect and increases the possibilities to get suitable light controlled atomic sources for spectroscopy and applications. In particular, we plan to exploit this feature in a Fr magneto-optical trap apparatus.
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Affiliation(s)
- A Cappello
- CNISM-Unità di Siena and Dipartimento di Fisica, Università degli Studi di Siena-56, via Roma I-53100 Siena, Italy
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Mohapatra AK, Jackson TR, Adams CS. Coherent optical detection of highly excited Rydberg states using electromagnetically induced transparency. PHYSICAL REVIEW LETTERS 2007; 98:113003. [PMID: 17501049 DOI: 10.1103/physrevlett.98.113003] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2006] [Indexed: 05/15/2023]
Abstract
We demonstrate coherent optical detection of highly excited Rydberg states (up to n=124) using electromagnetically induced transparency (EIT), providing a direct nondestructive probe of Rydberg energy levels. We show that the EIT spectra allow direct optical detection of electric field transients in the gas phase, and we extend measurements of the fine structure splitting of the nd series up to n=96. Coherent coupling of Rydberg states via EIT could also be used for cross-phase modulation and photon entanglement.
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Affiliation(s)
- A K Mohapatra
- Department of Physics, Durham University, Rochester Building, South Road, Durham DH1 3LE, United Kingdom
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Kasprowicz M, Dohnalik T, Jozefowski L, Rubahn K, Rubahn HG. Diffusion of rubidium atoms in PDMS thin films. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2004.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Bernheim R, Xu J, Mango F, Alzetta G. Threshold energy for the photon-stimulated desorption of Rb atoms from polydimethylsiloxane films. Chem Phys Lett 2000. [DOI: 10.1016/s0009-2614(00)01238-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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