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大自然 之 薄膜干涉實驗

大自然 之 薄膜干涉實驗. 班級：四技光電三甲 學生：黃成靖 499L0036 葉建吾 499L0112. Contents. Preface Experimental subjects Experimental parameters Analysis Reference. Wing Interference Pattern. From ： Stable structural color patterns displayed on transparent insect wings. Preface. 日常生活中常有許多干涉現象，只是我們時常忽略 !

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大自然 之 薄膜干涉實驗

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  1. 大自然之薄膜干涉實驗 班級：四技光電三甲 學生：黃成靖 499L0036 葉建吾 499L0112

  2. Contents • Preface • Experimental subjects • Experimental parameters • Analysis • Reference Wing Interference Pattern From：Stable structural color patterns displayed on transparentinsect wings

  3. Preface • 日常生活中常有許多干涉現象，只是我們時常忽略! For Example ： 1. 水中的油漬2. 洗碗精的泡泡3. 魚鱗片的彩色變化4. 蝴蝶翅膀的變幻光彩5. 塑膠射出物上的應力干涉6. 光學鍍膜鏡片上的七彩變幻 7. 蝸牛行走後的黏液…… • 我們選擇觀察昆蟲翅膀上出現的彩虹變化!

  4. Experimental subjects & Parameters Experimental subjects： 　我們實驗選用半翅目 (Hemiptera)、蠅科 (Muscidae)、雙翅目 (Diptera) 與膜翅目 (Hymenoptera) 的昆蟲翅膀做為實驗對象。 (註:對象為自行死亡的昆蟲) Experimental Parameters： • White background • Black background Photographic Equipment ： • Canon PowerShot SX50 HS (搭配CPLFilter SERIES) • hTC- One SV (搭配微距鏡頭、魚眼鏡頭)

  5. Thin film interference 　蝴蝶翅膀本身屬於Photonic Crystal結構，其週期性的網孔奈米結構對可見光(400~700nm)會有響應。 　當光照射到翅膀，某些波長的光會因網孔結構產生的能隙使其往特定方向傳播，並反射讓我們看到。 　隨著翅膀的受光角度不同就會反射出各種不同的顏色的光! 　當從翅膀反射出來的2道光線疊加時，就會看到鮮豔的色彩。 　由於翅膀的厚度不均勻，而顏色又是取決於該點的厚度；所以昆蟲的翅膀會顯現出各式各樣的光彩!

  6. Mosquito

  7. Cicada Cicadawing 上分泌的蛋白質也能產生 Thin film interference 的效果！

  8. Fly

  9. Seed

  10. Reference • Stable structural color patterns displayed on transparentinsect wings-Ekaterina Shevtsova, Christer Hansson, Daniel H. Janzen,andJosteinKjærandsen, November 24, 2010 (sent for review October 5, 2010) • Lecture on Photonic Crystals　中央大學光電系 陳啟昌教授 [註]：若要引用本報告圖片請標明出處，謝謝! Thanks for your attention !!

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