Realization of a twin beam source based on four wave mixing in Cesium
| Autor: | I. Ruo Berchera, Davide Calonico, S. Micalizio, N. Samantaray, Ivo Pietro Degiovanni, G. Adenier |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Physics
Quantum Physics Physics and Astronomy (miscellaneous) FOS: Physical sciences chemistry.chemical_element Resonance 01 natural sciences Beam source 010309 optics Four-wave mixing four wave mixing chemistry Caesium 0103 physical sciences Twin beam Physics::Atomic Physics Atomic physics atom based quantum protocols Quantum Physics (quant-ph) 010306 general physics Realization (systems) Mixing (physics) Laser beams Line (formation) |
| Popis: | Four-wave mixing (4WM) is a known source of intense non-classical twin beams. It can be generated when an intense laser beam (the pump) and a weak laser beam (the seed) overlap in a $\chi^{(3)}$ medium (here cesium vapor), with frequencies close to resonance with atomic transitions. The twin beams generated by 4WM have frequencies naturally close to atomic transitions, and can be intense (gain $\gg 1$) even in the CW pump regime, which is not the case for PDC $\chi^{(2)}$ phenomenon in non-linear crystals. So, 4WM is well suited for atom-light interaction and atom-based quantum protocols. Here we present the first realization of a source of 4-wave mixing exploiting $D_2$ line of Cesium atoms. Comment: 10 pages, 10 figures |
| Databáze: | OpenAIRE |
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