多光谱图像
鱿鱼
伪装
彩虹色
结构着色
折射率
有色的
地质学
遥感
红外线的
光学
光电子学
材料科学
计算机科学
光子晶体
生物
物理
人工智能
生态学
复合材料
作者
Georgii Bogdanov,Aleksandra Anna Strzelecka,Nikhil Kaimal,Stephen L. Senft,Sang-Hoon Lee,Roger T. Hanlon,Alon A. Gorodetsky
出处
期刊:Science
[American Association for the Advancement of Science]
日期:2025-06-26
卷期号:388 (6754): 1389-1395
被引量:1
标识
DOI:10.1126/science.adn1570
摘要
The manipulation of light by means of materials with varying refractive index distributions is widespread among natural systems and modern technologies. However, understanding how animals leverage refractive index differences for dynamic color changes and then translating such insight into tunable optical devices remains challenging. We experimentally and computationally demonstrated that iridescent cells (iridophores) containing Bragg reflectors with sinusoidal-wave (rugate) refractive index profiles enable squid dorsal mantle tissues to reversibly transition between nearly transparent and vibrantly colored states. We then drew inspiration from these findings for the design and development of iridophore-inspired multispectral composite materials with tunable visible and infrared functionalities. Our study provides insight into squid dynamic structural coloration mechanisms and furnishes a technology for camouflage, heat management, display, and sensing applications.
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