Photonic crystals are some of the more spectacular realizations that periodic arrays can change the behavior of electromagnetic waves. In nature, so-called structural colors appear in insects and even plants. Some species create beautiful color patterns as part of biological behavior such as reproduction or defense mechanisms as a form of biomimetics. The interaction between light and matter occurs at the surface, producing diffraction, interference and reflectance, and light transmission is possible under suitable conditions. In particular, there are two Colombian butterflies, Morpho cypris and Greta oto, that exhibit iridescence phenomena on their wings, and in this work, we relate these phenomena to the photonic effect. The experimental and theoretical approaches of the optical response visible region were studied to understand the underlying mechanism behind the light-matter interaction on the wings of these Colombian butterflies. Our results can guide the design of novel devices that use iridescence as angular filters or even for cosmetic purposes.

中文翻译：

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天然纳米结构上的光化学效应对蓝藻和Greta oto蝴蝶的翅膀。

光子晶体是周期阵列可以改变电磁波行为的一些更为壮观的实现。在自然界中，所谓的结构色出现在昆虫甚至植物中。一些物种会创造出美丽的色彩模式，作为生物行为的一部分，例如仿生形式的繁殖或防御机制。光与物质之间的相互作用发生在表面，产生衍射，干涉和反射率，并且在合适的条件下可以进行光透射。特别是，有两只哥伦比亚蝴蝶，Morpho cypris和Greta oto，它们的翅膀表现出虹彩现象，在这项工作中，我们将这些现象与光子效应相关联。研究了光学响应可见区的实验和理论方法，以了解这些哥伦比亚蝴蝶翅膀上的光-物质相互作用背后的潜在机制。我们的结果可以指导使用虹彩作为角度过滤器甚至用于美容目的的新型设备的设计。