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Surface plasmon devices for applications in communication and signal processing

用于通信和信号处理应用的表面等离子体激元器件

基本信息

批准号：
EP/E01013X/1
负责人：
Polina Bayvel
金额：
$ 38.65万
依托单位：
University College London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2007
资助国家：
英国
起止时间：
2007 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FE01013X%2F1
关键词：
Surface plasmon devices applications communication

项目摘要

Surface plasmon polaritons (SPPs) are electromagnetic waves on a surface of good metals coupled to oscillations of conduction electrons. The surface polariton is intrinsically a two-dimensional excitation, and SPPs can be used to reduce the problem of optical signals' manipulation from three to two dimensions. This significantly simplifies it and introduces additional opportunity for signal conditioning and control using properties of these waves on nanostructured surfaces and thin films. The SPP-based applications can form the basis of new devices for signal processing applications in future multiwavelength optical networks. As these networks evolve towards the nonlinear and quantum limits, new device functionalities to support these network technologies are required, and these devices must be necessarily compact andintegrable. The functionalities required are: tuneable dispersive properties for demultiplexing and routing of data carrying signals to different network nodes; polarization-selective properties - for polarization multiplexing to increase the datarates and decrease nonlinear interaction between channels; optical switching which requires a fast, high-contrast on-off transfer function; adaptive signal regeneration (both 3R -reshaping, retiming and re-amplification and the 2R variant - which perform re-shaping without re-timing) for undoing any acquired non-linear and noise impairments as channels are dynamically allocated and routed around the network. Currently most of these functionalities require discrete, bulk electronic and fibre components to realise. It is very appealing if all of these could be implemented in a single compact and integrable device, ideally with some optical gain. This may be possible if surface plasmon polariton-based effects are deployed, which allow to achieve novel passive and active photonic devices such as tuneable wavelength and polarisation selective structures, if appropriate designs can be realised. Here we propose to demonstrate and investigate, for the first time, the basic principles of operation of photonic elements for optical networks with functionality underpinned by particular properties of surface plasmon polariton waves on the nanostructured metal surfaces and thin films. Polarisation and wavelength sensitive applications as well as active devices for amplification of SPP signals will be investigated, for applications in communications and signal processing.

表面等离子体激元（SPP）是良好金属表面上的电磁波，与传导电子的振荡耦合。表面极化激元本质上是一个二维激发，而表面极化激元可以将光信号的处理问题从三维简化为二维。这大大简化了它，并引入了额外的机会，信号调理和控制使用这些波的性质的纳米结构表面和薄膜。基于SPP的应用可以形成用于未来多波长光网络中的信号处理应用的新器件的基础。随着这些网络向非线性和量子极限发展，需要新的设备功能来支持这些网络技术，这些设备必须是紧凑和可集成的。所需的功能包括：可调色散特性，用于将携带数据的信号解复用和路由到不同的网络节点;偏振选择特性-用于偏振复用以增加数据速率并减少信道之间的非线性相互作用;光开关，其需要快速、高对比度的开-关传递函数;自适应信号再生（3R -整形，重新定时和重新放大以及2 R变体-其执行重新整形而不进行重新定时），用于撤销任何获得的非线性和噪声损伤作为信道被动态分配并在网络中路由。目前，这些功能中的大多数都需要分立的、散装的电子和光纤组件来实现。如果所有这些都可以在一个紧凑且可集成的器件中实现，理想情况下具有一定的光学增益，那将是非常有吸引力的。如果部署基于表面等离子体激元的效应，这可能是可能的，如果可以实现适当的设计，这允许实现新颖的无源和有源光子器件，例如可调谐波长和偏振选择性结构。在这里，我们建议演示和调查，第一次，光子元件的操作的基本原则，光网络的功能支持的特定属性的表面等离子体极化激元波的纳米结构的金属表面和薄膜。偏振和波长敏感的应用，以及放大SPP信号的有源器件将被调查，在通信和信号处理的应用。