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Keywords: Iridescence
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Journal Articles
J Exp Biol (2019) 222 (24): jeb213306.
Published: 12 December 2019
...Cédric Kilchoer; Primož Pirih; Ullrich Steiner; Bodo D. Wilts ABSTRACT Nature's nanostructures can bring about vivid and iridescent colours seen in many insects, notably in beetles and butterflies. While the intense structural colours can be advantageous for display purposes, they may also...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (4): jeb174656.
Published: 28 February 2018
... the visible wavelength range, resulting in a higher refractive index (RI) than that of the surrounding keratin. By arranging melanosomes in the feather barbules in more or less regular patterns with nanosized dimensions, vivid iridescent colours are created due to constructive interference in a restricted...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (12): 1851–1859.
Published: 15 June 2016
... coloration. The highly iridescent feather colours of birds are most commonly produced by the periodic arrangement of melanin-containing organelles (melanosomes) within barbules. Melanin increases the saturation of iridescent colours seen from optimal viewing angles by absorbing back-scattered light; however...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (19): 3733–3741.
Published: 1 October 2013
..., these photonic structures have been a model for investigations into bio-inspired adaptive optics. Here, we describe two distinct sexually dimorphic tunable biophotonic features in the commercially important species Doryteuthis opalescens : bright stripes of rainbow iridescence on the mantle just beneath each fin...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (21): 3752–3757.
Published: 1 November 2012
... rocks, and biologists researching neurotoxins. These small animals spend much of their time in hiding, showing effective camouflage patterns. When disturbed, the octopus will flash around 60 iridescent blue rings and, when strongly harassed, bite and deliver a neurotoxin that can kill a human. Here, we...
Journal Articles
J Exp Biol (2012) 215 (16): 2742–2750.
Published: 15 August 2012
...Melissa G. Meadows; Thomas E. Roudybush; Kevin J. McGraw SUMMARY Many animal displays involve colorful ornamental traits that signal an individual's quality as a mate or rival. Brilliant iridescent ornaments are common, but little is currently known about their production cost and signaling value...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (4): 657–662.
Published: 15 February 2012
... and windows, is almost flat and closely apposed to the equally flat lower lamina. The glass scales thus approximate ideal thin films, in agreement with the observation that they reflect light directionally and are iridescent. Reflectance and transmittance spectra measured from the glass scales...
Journal Articles
J Exp Biol (2011) 214 (23): 3960–3967.
Published: 1 December 2011
... structures create iridescence. The extent of the angle-dependent light scattering increases with decreasing wavelength. All barbs have a cortical envelope with a thickness of a few micrometres. The reflectance spectra of the cortex of the barbs show oscillations when measured from small areas, but when...
Journal Articles
J Exp Biol (2007) 210 (5): 788–799.
Published: 1 March 2007
... evolution of polarized iridescence and life in a forest light environment. These results are consistent with the hypothesis that the production and detection of polarized light may have adaptive communicative value in those species inhabiting forest habitats with complex light conditions. The potential...
Journal Articles
J Exp Biol (2006) 209 (2): 380–390.
Published: 15 January 2006
...Stéphanie M. Doucet; Matthew D. Shawkey; Geoffrey E. Hill; Robert Montgomerie SUMMARY Iridescence is produced by coherent scattering of light waves from alternating layers of materials of different refractive indices. In birds,iridescent colours are produced by feather barbules when light...
Journal Articles
J Exp Biol (2002) 205 (14): 2017–2027.
Published: 15 July 2002
... structure determines the wavelengths where constructive interference occurs and, hence, the spectral tuning. The spectral tuning of interference colours often varies with angles of illumination and reflection, which produces iridescence. Iridescence and other optical effects mean that interference...