Standard and non-standard metarefraction with confocal lenslet arrays
Standard and non-standard metarefraction with confocal lenslet arrays
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具有共焦小透镜阵列的标准和非标准超折射
DOI：
10.1016/j.optcom.2009.03.046
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发表时间：
2009
影响因子：
2.4
通讯作者：
J. Courtial
中科院分区：
文献类型：
--
作者：
J. Courtial
最近的一篇论文证明，具有焦距f1和f2的两个小透镜阵列（由f1+f2分开）近似地像具有折射率n1和n2的各向同性介质之间的界面那样改变透射光线的方向，其中n1/n2=-f1/f2[J. Courtial，New J.Phys.10（2008）083033]。如果光穿过对应的小透镜，即共享光轴的小透镜，则这是真的。光也可以穿过非对应小透镜的不同组合。这样的光可以被吸收或被允许形成“重影”;无论哪种方式，它都会导致共焦小透镜阵列的视场的限制。本文定性和定量地描述了一些这样的视野限制。
A recent paper demonstrated that two lenslet arrays with focal lengths f1and f2, separated by f1+f2, change the direction of transmitted light rays approximately like the interface between isotropic media with refractive indices n1and n2, where n1/n2=-f1/f2[J. Courtial, New J. Phys. 10 (2008) 083033]. This is true if light passes through corresponding lenslets, that is lenslets that share an optical axis. Light can also pass through different combinations of non-corresponding lenslets. Such light can be either absorbed or allowed to form “ghost images”; either way, it leads to a limitation of the field of view of confocal lenslet arrays. This paper describes, qualitatively and quantitatively, a number of such field-of-view limitations.