Hyperspectral topography of the twisted, cholesteric patterns of an insect cuticle under various conditions of helix obliquity
Twisted cholesteric liquid crystal patterns are found in the iridescent chitin-containing
cuticles of many insects. They may exhibit spatial variation in the helical pitch and in the
orientation of the helix axis, as in the two-band, green and silver cuticle of the scarab beetle,
Chrysina gloriosa, which is the focus of the present study. The silver bands are pattern-free,
whereas the green bands exhibit an array of microcells. By hyperspectral microscopy with 6
nm spectral resolution in the range of 400 nm–1000 nm, we investigated the topography of …
cuticles of many insects. They may exhibit spatial variation in the helical pitch and in the
orientation of the helix axis, as in the two-band, green and silver cuticle of the scarab beetle,
Chrysina gloriosa, which is the focus of the present study. The silver bands are pattern-free,
whereas the green bands exhibit an array of microcells. By hyperspectral microscopy with 6
nm spectral resolution in the range of 400 nm–1000 nm, we investigated the topography of …
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