Bioinspired micrograting arrays mimicking the reverse color diffraction elements evolved by the butterfly Pierella luna
Author(s)England, Grant; Kolle, Mathias; Kim, Philseok; Khan, Mughees; Munoz, Philip; Mazur, Eric; Aizenberg, Joanna; ... Show more Show less
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Recently, diffraction elements that reverse the color sequence normally observed in planar diffraction gratings have been found in the wing scales of the butterfly Pierella luna. Here, we describe the creation of an artificial photonic material mimicking this reverse color-order diffraction effect. The bioinspired system consists of ordered arrays of vertically oriented microdiffraction gratings. We present a detailed analysis and modeling of the coupling of diffraction resulting from individual structural components and demonstrate its strong dependence on the orientation of the individual miniature gratings. This photonic material could provide a basis for novel developments in biosensing, anticounterfeiting, and efficient light management in photovoltaic systems and light-emitting diodes.
DepartmentMassachusetts Institute of Technology. Department of Mechanical Engineering
Proceedings of the National Academy of Sciences
National Academy of Sciences (U.S.)
England, G., M. Kolle, P. Kim, M. Khan, P. Munoz, E. Mazur, and J. Aizenberg. “Bioinspired Micrograting Arrays Mimicking the Reverse Color Diffraction Elements Evolved by the Butterfly Pierella Luna.” Proceedings of the National Academy of Sciences 111, no. 44 (October 6, 2014): 15630–15634.
Final published version