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Integrated Tunable Flat Lenses (TuneFuL)

集成可调平面透镜 (TuneFuL)

基本信息

批准号：
EP/J01303X/1
负责人：
Martin Cryan
金额：
$ 52.52万
依托单位：
University of Bristol
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2012
资助国家：
英国
起止时间：
2012 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FJ01303X%2F1
关键词：
Integrated Tunable Flat Lenses TuneFuL

项目摘要

This proposal aims to revolutionise one of the fundamental components used in optics : the semiconductor laser. These components are used in a huge array of applications from high speed optical communications - they power the internet, to laser machining, ultra sensitive gas sensors, the defence industry and scientific research. Common to all these applications is the requirement to focus, control or shape the beam of light coming from the laser, this is conventionally done with an external lenses which are often many 10's of times the size of the laser, which is typically a few mm^3 in volume, and often much more expensive. Allied to this problem is that once the beam is focused or controlled it is very difficult and expensive to alter it. Moreover, for many applications such as sensing and defence one may want to scan the laser beam across a field of view to interrogate or acquire information from a wide area. Finally, the spectral purity of the laser is critically important in many of these applications where it essential that there is only one single emitted wavelength. This proposal aims to solve all these problems in a low cost, mass market way by creating a flat, electronically controllable lens which can be patterned onto the emitting facet of the laser. This proposal will apply exciting ideas from the emerging field of optical nanoantennas to create tunable nanoantenna arrays configured as flat lenses. They will be first developed as standalone devices and then integrated with a range of semiconductor lasers to create electronically tunable output beams for focusing and steering applications and simultaneous control of the spectral purity of the laser.

这项提议旨在彻底改变光学中使用的基本部件之一：半导体激光器。这些元件被广泛应用于从高速光通信到激光加工、超灵敏气体传感器、国防工业和科学研究等各种应用领域。所有这些应用的共同要求是聚焦、控制或整形来自激光的光束，这通常是通过外部透镜来完成的，该外部透镜通常是激光器大小的许多10‘S倍，其体积通常是几毫米^3，并且通常要昂贵得多。与这个问题相关的是，一旦光束被聚焦或控制，改变它是非常困难和昂贵的。此外，对于许多应用，如传感和国防，人们可能想要扫描穿过视场的激光束，以询问或获取来自大范围区域的信息。最后，在许多这样的应用中，激光器的光谱纯度至关重要，因为在这些应用中，只有一个发射波长是至关重要的。这项提议旨在以低成本、大众市场的方式解决所有这些问题，方法是创造一种可以在激光发射面上形成图案的平板电子可控透镜。这项提议将应用新兴的光学纳米天线领域的令人兴奋的想法来创造配置为平板透镜的可调纳米天线阵列。它们将首先作为独立设备开发，然后与一系列半导体激光器集成，创建电子可调的输出光束，用于聚焦和控制应用，并同时控制激光的光谱纯度。