Adaptive shaping of a focused intense laser beam into a doughnut mode

Abstract : We present a method to shape the intensity distribution of an intense laser beam in the focal region, by means of a bimorph adaptive mirror. We emphasize the advantages in terms of flexibility with respect of previous methods making use of specially designed retarding phase plates; however, the nature of the mirror imposes constraints on the accessible wavefronts, whose consequences are analyzed. We present an experimental demonstration of the feasibility of the scheme on a high intensity femtosecond laser system.
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https://hal-polytechnique.archives-ouvertes.fr/hal-00522453
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Submitted on : Thursday, September 30, 2010 - 4:37:27 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

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O. Boyko, Th.A. Planchon, P. Mercère, C. Valentin, Philippe Balcou. Adaptive shaping of a focused intense laser beam into a doughnut mode. Optics Communications, Elsevier, 2005, 246 (1-3), pp.131-140. ⟨10.1016/j.optcom.2004.10.064⟩. ⟨hal-00522453⟩

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