A biological quarter-wave retarder with excellent achromaticity in the visible wavelength region

N. W. Roberts, T. H. Chiou, N. J. Marshall, T. W. Cronin

研究成果: Article同行評審

76 引文 斯高帕斯(Scopus)

摘要

Animals make use of a wealth of optical physics to control and manipulate light, for example, in creating reflective animal colouration and polarized light signals. Their precise optics often surpass equivalent man-made optical devices in both sophistication and efficiency. Here, we report a biophysical mechanism that creates a natural full-visible-range achromatic quarter-wave retarder in the eye of a stomatopod crustacean. Analogous, man-made retardation devices are important optical components, used in both scientific research and commercial applications for controlling polarized light. Typical synthetic retarders are not achromatic, and more elaborate designs, such as, multilayer subwavelength gratings or bicrystalline constructions, only achieve partial wavelength independence. In this work, we use both experimental measurements and theoretical modelling of the photoreceptor structure to illustrate how a novel interplay of intrinsic and form birefringence results in a natural achromatic optic that significantly outperforms current man-made optical devices.

原文English
頁(從 - 到)641-644
頁數4
期刊Nature Photonics
3
發行號11
DOIs
出版狀態Published - 2009 十一月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 原子與分子物理與光學

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