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@article{153761,
        author = {Litty Irimpan},
        title = {Photonic Crystals: Mystery of Colours of Butterfly Wings},
        journal = {International Journal of Innovative Research in Technology},
        year = {},
        volume = {8},
        number = {8},
        pages = {437-438},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=153761},
        abstract = {The delicate beauty of butterfly wings lies in their colour and it is due to its intricate structure and functionality. The butterfly wings are covered by scales built of chitin of refractive index 1.58. The typical dimensions of scales are in micrometer range. Each side of the wings of butterflies is covered by two distinct layers of scales. Thus they form layered periodic microstructures with contrast refractive index and act as photonic crystals. These quasi ordered multilayer structures may behave as photonic bandgap materials and produce different colours.},
        keywords = {Colour, Butterfly, Photonic crystal, Photonic bandgap },
        month = {},
        }