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发明公开
CN108821228A 一种可实现非对称传输的纳米结构及其制备方法 无效 - 驳回

一种可实现非对称传输的纳米结构及其制备方法
摘要：
本发明涉及微纳光学技术领域，具体涉及一种可实现非对称传输的纳米结构及其制备方法，纳米结构由第一纳米薄膜、介质层和第二纳米薄膜由上及下依次连接构成，第一纳米薄膜和第二纳米薄膜完全相同，均由多个结构相同的纳米单元按矩形周期阵列连接而成，每个纳米单元由一金属薄膜构成，每个纳米单元还包括有一倾斜矩形孔，矩形孔长边与纳米单元周期方向具有一夹角α，第一纳米薄膜和第二纳米薄膜上的矩形孔位置相同，且上下贯通，金属薄膜由贵金属制成。本发明纳米结构结构简单，相较单层和三层结构可以实现较大的非对称传输，产生更大的AT信号，易于制备且精度高，可以通过简单的结构及制备方法产生很强的非对称传输效应。
摘要（英）：

The invention relates to the technical field of micro-nano optics, in particular to a nano structure capable of achieving asymmetric transmission and a preparation method of the nano-structure. The nano structure is formed by sequentially connecting a first nano film, a dielectric layer and a second nano film from top to bottom; and the first nano film and the second nano film are completely sameand each is formed by connecting multiple nano units with the same structure according to a rectangular periodic matrix, and each nano unit is formed by a metal film and comprises an inclined rectangular hole, wherein an included angle alpha is formed between the long sides of the rectangular hole and the periodic direction of the nano unit, the rectangular holes on the first nano film and the second nano film have the same positions and are vertically through, and the metal films are made of precious metal. The nano structure is simple, capable of achieving great asymmetric transmission and generating bigger AT signals compared with a single-layer structure and a three-layer structure, easy to prepare, high in precision and capable of generating a strong asymmetric transmission effect through the simple structure and preparation method.

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