体全息光栅透镜的设计和应用

设计了一种新型的体全息光栅透镜，在一块光学平板(体全息记录材料)内可以将输入光束产生横向传输并聚焦，或对输入光点产生横传的准直．它由一束平面波和一束球面波正交入射到光学平板上干涉形成的．研究了该体全息透镜的光栅间距变化情况，为设计和制备体全息光栅透镜及相关器件提供了理论依据．基于两光束耦合波理论，得到了该光栅透镜的耦合波方程，近似计算了该透镜的衍射效率及其达到高衍射效率时透镜的最佳尺寸．最后，讨论了该透镜在集成光学等领域中的应用．

New volume holographic grating lenses for laterally focusing an optical wave or collimating an optical wave emitted from an optical dot in an optical plate (volume holographic material), has been designed. Grating pitch and grating vector of the grating lenses are derived from intensity distribution of wavefront interfering field of a plane wave and a spherical wave. And basis is provided to design and fabricate volume holographic grating lenses devices. On the basis of two beams coupled wave theory, coupled wave differential equations and the boundary conditions are derived. Numerical results of the diffraction efficiency and the best size with high efficiency of the grating lenses are also given. And the practical applications in integrated optics or other fields are discussed.