Stochastic homogenization of the laser intensity to improve the irradiation uniformity of capsules directly driven by thousands laser beams

Temporal, Mauro y Canaud, B. (2011). Stochastic homogenization of the laser intensity to improve the irradiation uniformity of capsules directly driven by thousands laser beams. "European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics", v. 65 (n. 3); pp. 1-5. ISSN 1434-6060. https://doi.org/10.1140/epjd/e2011-20366-x.

Descripción

Título: Stochastic homogenization of the laser intensity to improve the irradiation uniformity of capsules directly driven by thousands laser beams
Autor/es:
  • Temporal, Mauro
  • Canaud, B.
Tipo de Documento: Artículo
Título de Revista/Publicación: European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics
Fecha: 2011
Volumen: 65
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Illumination uniformity of a spherical capsule directly driven by laser beams has been assessed numerically. Laser facilities characterized by ND = 12, 20, 24, 32, 48 and 60 directions of irradiation with associated a single laser beam or a bundle of NB laser beams have been considered. The laser beam intensity profile is assumed super-Gaussian and the calculations take into account beam imperfections as power imbalance and pointing errors. The optimum laser intensity profile, which minimizes the root-mean-square deviation of the capsule illumination, depends on the values of the beam imperfections. Assuming that the NB beams are statistically independents is found that they provide a stochastic homogenization of the laser intensity associated to the whole bundle, reducing the errors associated to the whole bundle by the factor  , which in turn improves the illumination uniformity of the capsule. Moreover, it is found that the uniformity of the irradiation is almost the same for all facilities and only depends on the total number of laser beams Ntot = ND × NB.

Más información

ID de Registro: 12069
Identificador DC: http://oa.upm.es/12069/
Identificador OAI: oai:oa.upm.es:12069
Identificador DOI: 10.1140/epjd/e2011-20366-x
URL Oficial: http://www.springerlink.com/content/fp21rk7nx7722858/?MUD=MP
Depositado por: Memoria Investigacion
Depositado el: 18 Sep 2012 12:16
Ultima Modificación: 21 Abr 2016 11:14
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