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  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Mechanical-tunable Structural Color Inspiredby Chameleon Skin

    Polina Abratenko

    Lopez Group - Department of Physics and Astronomy

    July 23, 2015

    1 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Structural color in nature

    2 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Structural color in nature

    2 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Structural color in nature

    2 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    What is structural color?

    Interaction of light with nanoscale structures Multilayer scales make up the mother-of-pearl of the

    nautilus

    There are a few types of structural color: Diffraction grating (butterflies, beetles) Photonic crystals (some butterflies)

    3 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    What is structural color?

    Interaction of light with nanoscale structures Multilayer scales make up the mother-of-pearl of the

    nautilus

    There are a few types of structural color: Diffraction grating (butterflies, beetles) Photonic crystals (some butterflies)

    3 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    What is structural color?

    Interaction of light with nanoscale structures Multilayer scales make up the mother-of-pearl of the

    nautilus

    There are a few types of structural color: Diffraction grating (butterflies, beetles) Photonic crystals (some butterflies)

    3 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    What is structural color?

    Interaction of light with nanoscale structures Multilayer scales make up the mother-of-pearl of the

    nautilus

    There are a few types of structural color: Diffraction grating (butterflies, beetles) Photonic crystals (some butterflies)

    3 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    What is structural color?

    Interaction of light with nanoscale structures Multilayer scales make up the mother-of-pearl of the

    nautilus

    There are a few types of structural color: Diffraction grating (butterflies, beetles) Photonic crystals (some butterflies)

    3 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Photonic crystals

    Made up of different dielectric materials periodicallyarranged in space

    Light passes through lattice, but not band gap Wavelength disallowed by band gap is the wavelength of

    the reflected color

    4 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Photonic crystals

    Made up of different dielectric materials periodicallyarranged in space

    Light passes through lattice, but not band gap Wavelength disallowed by band gap is the wavelength of

    the reflected color

    4 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Photonic crystals

    Made up of different dielectric materials periodicallyarranged in space

    Light passes through lattice, but not band gap Wavelength disallowed by band gap is the wavelength of

    the reflected color

    4 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Recently discovered: chameleon skin uses structural color(photonic crystals)

    Most notable: panther chameleon (pictured above)

    5 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Chameleon skin

    Nature Communications 6, Article number: 63686 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Flat films

    Reproduced structural color with self-assembledPolystyrene nanospheres

    Poly(dimethylsiloxane)(PDMS) substrate Swelling in silicone oil

    7 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Flat films

    Reproduced structural color with self-assembledPolystyrene nanospheres

    Poly(dimethylsiloxane)(PDMS) substrate Swelling in silicone oil

    7 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat filmmethods

    Flat film results

    Angle-independentsystem methods

    Angle-independentsystem results

    Conclusion

    Acknowledgments

    Questions andcomments

    Flat films

    Reproduced structural color with self-assembledPolystyrene nanospheres

    Poly(dimethylsiloxane)(PDMS) substrate Swelling in silicone oil

    7 / 16

  • Mechanical-tunable

    StructuralColor Inspiredby Chameleon

    Skin

    PolinaAbratenko

    What isstructural color?

    Photonic crystals

    Chameleonstructures

    Flat