人工超材料具有优异的光学特性，可以应用到偏振旋转、超透镜、调制器等许多领域，引起人们的广泛关注。但是在超材料的研究上，主要仍然集中在二维结构的超材料，对于三维结构的超材料的研究仍然很少，主要是工作在中近红外和可见光区的三维超材料存在制备技术上的问题。本项目基于我们发展的牺牲层辅助纳米转移技术可制备在弹性衬底上的三维微纳结构的基础上，提出研究动态可调的二维和三维超材料。设计和制备动态可调的、具有手征性的三维超材料，并且制备间隙在亚纳米量级动态可调的单一纳米金属颗粒对，研究金属颗粒对和光场之间的量子效应，比如量子隧穿现象以及光与物质相互作用现象。这些研究将促进动态可调三维超材料的发展，同时促进表面等离激元的量子效应研究。

Artificial metamaterials with superior optical properties attract lots of attentions, which can be used in polarization rotators, super-lenses, modulators, and so on. Two-dimensional (2D) metamaterials are extensively studied. However, due to the difficulty in fabrication of three-dimensional (3D) metamaterials working in the visible and infrared region, the study of 3D metamaterials is very rare. We have developed a novel nanotransfer printing technology with the assistant of a sacrificial metal layer. Based on this technology, we have fabricated 2D and 3D nano-/micro-structures on elastic slab, for example on polydimethylsiloxane (PDMS) slab. Because the metamaterials are on the elastic slab, we proposed that we could dynamically tune the parameters of the nanostructures. With the tuning of the parameters of the structures, the optical properties of the metamaterials can also be dynamically tuned. Thus, we propose such an application. In this project, we design and fabricate 2D and 3D metamaterials with optical chirality on PDMS slabs, which could be used in polarization rotators, modulators with dynamically tunability. We develop a technology to fabricate a single gold particle dimer with a dynamically tunable gap in sub-nanometer scale, which could be used to study the quantum effect of surface plasmon polaritons in this dimer, such as quantum tunneling effect. The results obtained in this project will push the study of 3D metamaterials and quantum effect of surface plasmon polariton in a metal dimer.