Dogadan esinlenilmis tamamen polimer 2B fotonik kristal fiberler

Photonic crystals are essential part of the integrated systems which require manipulation of light in a manner that all-optical polarization and reflection properties are completely calibrated to necessary levels. However, beyond scientific development of photonic crystals, biological systems also provided inspiration for the field since they perfected the mechanisms in terms of coloration over millions of years. In addition, natural samples are also observed to serve and function for more than single purpose, and this further illuminates the technological designs so as to develop multifunctional structures. Anas Platyrhynchos L. (mallard) is one of the natural examples and detailed investigations yield that its neck feathers have structural coloration, iridescence and hydrophobicity. Being inspired form mallard duck, two-dimensional photonic crystal fibers are produced to imitate coloration and surface architecture. The fabrication is established by iterative size reduction technique which, as a top-down method, enables design of nano-scale materials from macro-scale structures. To accurately imitate duck feathers, polycarbonate (PC) and polyvinyldifluoride (PVDF), are characterized and selected for their thermal compatibility and dielectric properties among number of polymers. Produced 2D photonic crystal fibers have been demonstrated to reflect color of green like duck feathers, and also shown to have iridescence by optical means. Besides single coloration, all colors of visible spectrum are also obtained to attest potential applicability of fabrication technique and produced fibers. It is also substantiated that all colors can be obtained in a single fiber by tapering a thick fiber. In addition, last but not least, 2D photonic crystal fibers are carefully designed to have surface roughness which promoted hydrophobic feature of PVDF and provided better hydrophobicity than natural counterparts. Provided structures are also the first demonstration for production of all-polymer two dimensional photonic crystal fibers which may be used in textile or filtering technologies.