A shape-anisotropic reflective polarizer in a stomatopod crustacean

Thomas M. Jordan, David Wilby, Tsyr Huei Chiou, Kathryn D. Feller, Roy L. Caldwell, Thomas W. Cronin, Nicholas W. Roberts

研究成果: Article

10 引文 (Scopus)

摘要

Many biophotonic structures have their spectral properties of reflection 'tuned' using the (zeroth-order) Bragg criteria for phase constructive interference. This is associated with a periodicity, or distribution of periodicities, parallel to the direction of illumination. The polarization properties of these reflections are, however, typically constrained by the dimensional symmetry and intrinsic dielectric properties of the biological materials. Here we report a linearly polarizing reflector in a stomatopod crustacean that consists of 6-8 layers of hollow, ovoid vesicles with principal axes of ~550 nm, ~250 nm and ~150 nm. The reflection of unpolarized normally incident light is blue/green in colour with maximum reflectance wavelength of 520 nm and a degree of polarization greater than 0.6 over most of the visible spectrum. We demonstrate that the polarizing reflection can be explained by a resonant coupling with the firstorder, in-plane, Bragg harmonics. These harmonics are associated with a distribution of periodicities perpendicular to the direction of illumination, and, due to the shape-anisotropy of the vesicles, are different for each linear polarization mode. This control and tuning of the polarization of the reflection using shape-anisotropic hollow scatterers is unlike any optical structure previously described and could provide a new design pathway for polarization-tunability in man-made photonic devices.

原文English
文章編號21744
期刊Scientific reports
6
DOIs
出版狀態Published - 2016 二月 17

指紋

Periodicity
Lighting
Optics and Photonics
Anisotropy
Color
Light
Equipment and Supplies
Direction compound

All Science Journal Classification (ASJC) codes

  • General

引用此文

Jordan, T. M., Wilby, D., Chiou, T. H., Feller, K. D., Caldwell, R. L., Cronin, T. W., & Roberts, N. W. (2016). A shape-anisotropic reflective polarizer in a stomatopod crustacean. Scientific reports, 6, [21744]. https://doi.org/10.1038/srep21744
Jordan, Thomas M. ; Wilby, David ; Chiou, Tsyr Huei ; Feller, Kathryn D. ; Caldwell, Roy L. ; Cronin, Thomas W. ; Roberts, Nicholas W. / A shape-anisotropic reflective polarizer in a stomatopod crustacean. 於: Scientific reports. 2016 ; 卷 6.
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Jordan, TM, Wilby, D, Chiou, TH, Feller, KD, Caldwell, RL, Cronin, TW & Roberts, NW 2016, 'A shape-anisotropic reflective polarizer in a stomatopod crustacean', Scientific reports, 卷 6, 21744. https://doi.org/10.1038/srep21744

A shape-anisotropic reflective polarizer in a stomatopod crustacean. / Jordan, Thomas M.; Wilby, David; Chiou, Tsyr Huei; Feller, Kathryn D.; Caldwell, Roy L.; Cronin, Thomas W.; Roberts, Nicholas W.

於: Scientific reports, 卷 6, 21744, 17.02.2016.

研究成果: Article

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Jordan TM, Wilby D, Chiou TH, Feller KD, Caldwell RL, Cronin TW 等. A shape-anisotropic reflective polarizer in a stomatopod crustacean. Scientific reports. 2016 2月 17;6. 21744. https://doi.org/10.1038/srep21744