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Analysis of the phase conjugation reflectivity for volume speckle patterns in a BSO crystal

机译：BSO晶体中体积斑点图案的相位共轭反射率分析

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When a diffusing surface is illuminated by a coherent light beam, speckles are formed in the space in front of the surface. These speckles have a three-dimensional structure. However, in spite of this three-dimensional nature, two-dimensional recording media are usually used for applications in optical metrology. Since 80's, the photorefractive crystals were widely employed for optical processing and metrology in particular concerning speckle applications. Furthermore, we have taken advantage of the three-dimensional photorefractive medium to store three-dimensional speckle distributions. In our case, the phase conjugation theory, within the transmission grating approximation, is applied to study the phase conjugation reflectivity when speckle patterns are stored in a BSO photorefractive crystal. It is numerically shown that the beam coupling theory is adequate to explain the reflectivity behavior in terms of the average modulation of the registered speckles and the average speckle length. The knowledge of the reflectivity behavior when speckle patterns are considered, allows to optimize interferometric system based on real-time speckle pattern correlation and to improve speckle applications in optical signal processing.

机译：当用相干光束照射漫射表面时，在该表面前面的空间中会形成斑点。这些斑点具有三维结构。然而，尽管具有这种三维性质，但二维记录介质通常仍被用于光学计量学中。自80年代以来，光折变晶体被广泛用于光学处理和计量学，特别是在散斑应用方面。此外，我们利用了三维光折射介质来存储三维散斑分布。在我们的案例中，在传输光栅近似中，使用相位共轭理论研究散斑图样存储在BSO光折射晶体中时的相位共轭反射率。从数值上可以看出，光束耦合理论足以用配准斑点的平均调制和平均斑点长度来解释反射率行为。当考虑散斑图案时的反射率行为的知识允许基于实时散斑图案相关性来优化干涉系统，并改善散斑在光信号处理中的应用。

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《RIAO/OPTILAS 2004》|2004年|P.470-474|共5页
会议地点 Porlamar(VE)
作者
A. Salazar; M. Tebaldi; N. Bolognini;
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作者单位

Grupo de Optica y Espectroscopia (GOE), Centro de Ciencia Basica, Universidad Pontificia Bolivariana, Medellin, Colombia;

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会议组织
原文格式 PDF
正文语种 eng
中图分类应用光学;
关键词
speckle; photorefractive BSO crystal; phase conjugation reflectivity;

机译：散斑；光折变BSO晶体；相位共轭反射率;

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1. Analysis of reflection speckle holograms in a BSO crystal [J] . Angel Salazar, Hector Lorduy, Myrian Tebaldi, Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter . 2006,第2期

机译：BSO晶体中反射斑点全息图的分析
2. Analysis of high frequency modulated speckle in a BSO crystal [J] . Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter . 2003,第1a3期

机译：BSO晶体中的高频调制散斑分析
3. Proposal for observing intensity-intensity-correlation speckle patterns with thermal light via phase conjugation [J] . Wang Li-Gang, Al-Amri M., Zubairy M. Suhail Physical Review, A. Atomic, molecular, and optical physics . 2015,第4aPta1期

机译：关于通过相位共轭观察热光的强度-强度-相关散斑图的建议
4. Analysis of the phase conjugation reflectivity for volume speckle patterns in a BSO crystal [C] . A. Salazar, Myrian C. Tebaldi, Nestor A. Bolognini Latin American Meeting on Optics, Lasers, and Their Applications . 2004

机译：BSO晶体中体积散斑图案相位缀合反射率分析
5. Phase coherent effects in the speckle correlation of light scattered from volume disordered media and randomly rough surfaces. [D] . Danila, Bogdan. 2004

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Analysis of the phase conjugation reflectivity for volume speckle patterns in a BSO crystal

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