Zhang Xinping, Zhang Jian, Liu Hongmei, Su Xueqiong, Wang Li
Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, P. R. China.
Sci Rep. 2014 Feb 25;4:4182. doi: 10.1038/srep04182.
Flexible photonic crystals are attractive devices owing to their multifold tunable parameters additionally introduced by soft substrates or by nanostructured, nano-doped, or nano-embedded soft matters. This not only extends significantly the intrinsic functions of photonic crystals, but also facilitates easy integration of the photonic crystal device into various optoelectronic and sensing systems. So far, flexible metallic photonic structures have been constructed on micrometer scales with complex fabrication procedures. Much simpler and more reproducible methods are expected to achieve such metamaterials in large scales and at low costs. In address to these challenges, we developed a straightforward approach to create soft plasmonic photonic crystals consisting of gold nanolines arranged on stretchable substrates with nanoscale periods, centimeter-scale areas, and high reproducibility using annealed gold nanoparticle colloids.
柔性光子晶体是很有吸引力的器件，这是因为软质衬底或纳米结构、纳米掺杂或纳米嵌入的软物质额外引入了多种可调参数。这不仅显著扩展了光子晶体的固有功能，还便于将光子晶体器件轻松集成到各种光电和传感系统中。到目前为止，柔性金属光子结构已通过复杂的制造工艺在微米尺度上构建而成。人们期望采用更简单且更具可重复性的方法来大规模、低成本地实现此类超材料。为应对这些挑战，我们开发了一种直接的方法来制备软等离子体光子晶体，该晶体由排列在具有纳米级周期、厘米级面积且具有高可重复性的可拉伸衬底上的金纳米线组成，使用的是经过退火处理的金纳米颗粒胶体。
