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首页> 外文学位 >INTERFEROMETRIC RECORDING OF HOLOGRAPHIC OPTICAL ELEMENTS USING PARTIALLY COHERENT LIGHT.
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INTERFEROMETRIC RECORDING OF HOLOGRAPHIC OPTICAL ELEMENTS USING PARTIALLY COHERENT LIGHT.

机译：使用部分相干光的全息光学元件的干涉光记录。

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摘要

The invention of the laser along with the theory of off axis holography made the construction of holographic optics such as diffraction gratings, zone plates, and holographic mirrors quite convenient. One drawback of the laser, when used in the construction of holographic optical elements (HOE's), is coherent noise. This thesis describes several techniques for constructing HOE's in light of reduced coherence. When the coherence of a laser source is reduced, coherent noise is suppressed.; Classical and modern interferometers are described for use in the construction of HOE's. These interferometers generally operate in partially or totally incoherent light. Chief among these are the grating and Mach-Zehnder interferometers. Other interferometers are introduced that are based on the two named above. The first is a hybrid between the Mach-Zehnder and a Fresnel biprism. The second is a combination of the grating interferometer and diffractive lenses. These interferometers are described for their ability to form high contrast interference fringes in incoherent light.; The use of spatially incoherent light in transmission HOE construction is shown to be a significant improvement over the use of coherent light. Spatially incoherent and temporally incoherent transmission HOE forming systems are shown to have the ability to interfere a broad range of spherical wavefronts. They are capable of forming holographic zone plates with a wide variation of conjugate focal planes.; Optical systems for the construction of reflection HOE's, in either spatially or temporally incoherent light, are described along with a transmission HOE forming system that operates in completely white light.; The final chapter is devoted to the discussion of areas of possible future research. These include a study of the aberrations of HOE's formed in light of reduced coherence and a general discussion of the possibility for forming aspheric HOEs in light of reduced spatial coherence.
机译：激光的发明以及离轴全息术的理论使诸如衍射光栅，波带片和全息镜之类的全息光学器件的构造非常方便。当用于全息光学元件（HOE）的构造中时，激光的一个缺点是相干噪声。本文描述了从降低相干性的角度来构建HOE的几种技术。当降低激光源的相干性时，相干噪声得到抑制。描述了古典和现代干涉仪用于HOE的构造。这些干涉仪通常在部分或全部不相干的光下工作。其中主要的是光栅和马赫曾德尔干涉仪。介绍了基于上述两个的其他干涉仪。首先是马赫曾德尔和菲涅耳双棱镜之间的混合体。第二个是光栅干涉仪和衍射透镜的组合。描述这些干涉仪是因为它们能够在非相干光中形成高对比度干涉条纹。在传输HOE结构中使用空间非相干光显示出比相干光的使用有了显着改进。空间不连贯和时间不连贯的传输HOE形成系统显示出具有干扰广泛范围的球形波前的能力。它们能够形成具有多种共轭焦平面变化的全息波带片。描述了用于在空间或时间上非相干光中构造反射HOE的光学系统，以及在全白光下工作的透射HOE形成系统。最后一章专门讨论可能的未来研究领域。这些研究包括对相干性降低所形成的HOE的像差进行研究，以及对空间相干性降低而形成非球面HOE的可能性进行一般性讨论。

著录项

  • 作者

    LEON, STACY CUEVAS.;

  • 作者单位

    University of Michigan.;

  • 授予单位 University of Michigan.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 1987
  • 页码 143 p.
  • 总页数 143
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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