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Photonic Band Gaps in One-Dimensionally Ordered Cold Atomic Vapors

Abstract : We experimentally investigate the Bragg reflection of light at one-dimensionally ordered atomic structures by using cold atoms trapped in a laser standing wave. By a fine tuning of the periodicity, we reach the regime of multiple reflection due to the refractive index contrast between layers, yielding an unprecedented high reflectance efficiency of 80%. This result is explained by the occurrence of a photonic band gap in such systems, in accordance with previous predictions.
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Submitted on : Monday, June 6, 2011 - 11:54:25 AM
Last modification on : Thursday, November 21, 2019 - 1:14:01 PM
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Alexander Schilke, Claus Zimmermann, Philippe Courteille, William Guerin. Photonic Band Gaps in One-Dimensionally Ordered Cold Atomic Vapors. Physical Review Letters, American Physical Society, 2011, 106, pp.223903. ⟨10.1103/PhysRevLett.106.223903⟩. ⟨hal-00557131v3⟩



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