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This article is cited in 13 scientific papers (total in 13 papers)
Cooling of atoms
Laser system for secondary cooling of 87Sr atoms
K. Yu. Khabarovaa, S. N. Slyusareva, S. A. Strelkina, G. S. Belotelova, A. S. Kostina, V. G. Pal'chikova, N. N. Kolachevskyb a All-Russian Scientific Research Institute of Physical-Technical and Radiotechnical Measurements, Mendeleevo, Moscow region
b P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
Abstract:
A laser system with a narrow generation line for secondary laser cooling of 87Sr atoms has been developed and investigated. It is planned to use ultracold 87Sr atoms loaded in an optical lattice in an optical frequency standard. To this end, a 689-nm semiconductor laser has been stabilised using an external reference ultrastable cavity with vibrational and temperature compensation near the critical point. The lasing spectral width was 80 Hz (averaging time 40 ms), and the frequency drift was at a level of 0.3 Hz s-1. Comparison of two independent laser systems yielded a minimum Allan deviation: 2 × 10-14 for 300-s averaging. It is shown that this system satisfies all requirements necessary for secondary cooling of 87Sr atoms using the spectrally narrow 1S0 — 3P1 transition (λ = 689 nm).
Keywords:
87Sr atom, laser cooling, optical lattice, ultrastable cavity, clock transition.
Received: 13.09.2012 Revised: 11.10.2012
Citation:
K. Yu. Khabarova, S. N. Slyusarev, S. A. Strelkin, G. S. Belotelov, A. S. Kostin, V. G. Pal'chikov, N. N. Kolachevsky, “Laser system for secondary cooling of 87Sr atoms”, Kvantovaya Elektronika, 42:11 (2012), 1021–1026 [Quantum Electron., 42:11 (2012), 1021–1026]
Linking options:
https://www.mathnet.ru/eng/qe14989 https://www.mathnet.ru/eng/qe/v42/i11/p1021
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