High speed spatially multimode Λ-type atomic memory with arbitrary frequency detuning
| Autor: | T. Golubeva, Alberto Bramati, Yu. M. Golubev, Julien Laurat, O. S. Mishina, Elisabeth Giacobino |
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| Rok vydání: | 2012 |
| Předmět: |
Physics
Quantum Physics Multi-mode optical fiber Spacetime FOS: Physical sciences Lambda 01 natural sciences Atomic and Molecular Physics and Optics 010305 fluids & plasmas Atomic coherence Computational physics symbols.namesake 0103 physical sciences symbols Physics::Atomic Physics Quantum Physics (quant-ph) 010306 general physics Ground state Raman spectroscopy Quantum Coherence (physics) |
| Zdroj: | The European Physical Journal D. 66 |
| ISSN: | 1434-6079 1434-6060 |
| DOI: | 10.1140/epjd/e2012-20723-3 |
| Popis: | We present a general model for an atomic memory using ultra-short pulses of light, which allows both spatial and temporal multimode storage. The process involves the storage of a faint quantum light pulse into the spin coherence of the ground state of Lambda-type 3-level atoms, in the presence of a strong driving pulse. Our model gives a full description of the evolution of the field and of the atomic coherence in space and time throughout the writing and the read-out processes. It is valid for any frequency detuning, from the resonant case to the Raman case, and allows a detailed optimization of the memory efficiency. Comment: 13 pages, 12 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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