Standard and non-standard metarefraction with confocal lenslet arrays

OPTICS COMMUNICATIONS

卷:282

Article

Courtial, Johannes

关键词: Confocal lenslet arrays;    METATOYs;    Field of view;    Geometrical optics;    Optical materials;   

DOI  :  10.1016/j.optcom.2009.03.046

来源: Elsevier

【 摘 要 】

A recent paper demonstrated that two lenslet arrays with focal lengths f(1) and f(2), separated by f(1) + f(2), change the direction of transmitted light rays approximately like the interface between isotropic media with refractive indices n(1) and n(2), where n(1)/n(2) = -f(1)/f(2) [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. (C) 2009 Elsevier B.V. All rights reserved.

【 授权许可】

Free