High-power vortex laser development for machining and optical levitation

用于加工和光学悬浮的高功率涡旋激光器开发

基本信息

批准号：
2475804
负责人：
金额：
--
依托单位：
Imperial College London
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2021
资助国家：
英国
起止时间：
2021 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2475804
关键词：
power vortex laser development machining

项目摘要

Lasers are exceptionally precise tools that can provide unrivalled control of the world around us, they form the bedrock of many modern technologies and manufacturing processes. Much research has been done on optimising their properties, for example their power or wavelength, but their spatial properties provide a degree of control that has only recently started to be exploited. Of particular interest are optical vortices, where the laser phase has a corkscrew shape giving the beam orbital angular momentum (OAM). Lasers with OAM provide a vast array of new technological opportunities that has gathered significant research interest.This project will focus on the development of solid-state laser cavities that directly output these vortex modes at unrivalled powers and purities. This will involve scientific demonstrations of the technologies developed, but also include tailoring these designs to specific real-world applications. Of particular interest in this project is chiral nano-needle manufacture and optical levitation of reflective metal shells.The student will be actively involved in the design, building and testing of these novel high-power vortex laser systems. The project is primarily experimental, but the laboratory work will be supported by theoretical and computational investigations of which there is significant scope to explore. This is an excellent opportunity to be involved in an interdisciplinary range of areas from fundamental laser science to applications, the student will work with collaborators at Imperial and abroad.

激光是非常精确的工具，可以提供对我们周围世界的无与伦比的控制，它们构成了许多现代技术和制造过程的基石。已经为优化其特性（例如其功率或波长）进行了许多研究，但是它们的空间特性提供了一定程度的控制，直到最近才开始利用。特别令人感兴趣的是光学涡旋，其中激光相具有开瓶器形状，从而使梁轨道角动量（OAM）。带有OAM的激光器提供了各种各样的新技术机会，这些新技术机会引起了重大的研究兴趣。该项目将着重于固态激光腔的开发，这些型号直接以无与伦比的力量和纯度直接输出这些涡旋模式。这将涉及开发的技术的科学演示，但还包括将这些设计量身定制为特定的现实世界应用。在这个项目中特别感兴趣的是手性纳米针的制造和反射金属壳的光学悬浮。学生将积极参与这些新型的高功率涡流激光系统的设计，构建和测试。该项目主要是实验性的，但是实验室工作将得到理论和计算研究的支持，其中有很大的范围可以探索。这是参与从基本激光科学到应用程序的跨学科范围的绝佳机会，学生将与帝国和国外的合作者合作。