Grazing-Incidence Iridescence from a Butterfly Wing
Applied Optics, Vol. 41, Issue 3, pp. 437-441 (2002)
http://dx.doi.org/10.1364/AO.41.000437
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Abstract
The Troides magellanus butterfly exhibits a specialized iridescence that is visible only when its hind wings are both illuminated and viewed at near-grazing incidence. The effect is due to the presence of a constrained bigrating structure in its wing scales that has been previously observed in only one other species of butterfly (Ancyluris meliboeus). However, whereas the Ancyluris presents wide-angle flickering iridescence, the Troides butterfly uses pigmentary coloration at all but a narrow tailored range of angles, producing a characteristic effect.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1960) Diffraction and gratings : Diffraction theory
(050.1970) Diffraction and gratings : Diffractive optics
(170.1420) Medical optics and biotechnology : Biology
Citation
Chris Lawrence, Peter Vukusic, and Roy Sambles, "Grazing-Incidence Iridescence from a Butterfly Wing," Appl. Opt. 41, 437-441 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-3-437
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