权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

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，可以对我们周围的世界进行无与伦比的控制，它们构成了许多现代技术和制造工艺的基础。已经做了很多研究来优化它们的特性，例如它们的功率或波长，但是它们的空间特性提供了一定程度的控制，直到最近才开始被利用。特别令人感兴趣的是光学涡旋，其中激光相位具有螺旋形状，给出光束轨道角动量（OAM）。具有OAM的激光器提供了大量的新技术机会，这些机会已经引起了重大的研究兴趣。该项目将专注于开发固态激光腔，以无与伦比的功率和纯度直接输出这些涡旋模式。这将涉及所开发技术的科学演示，但也包括将这些设计定制为特定的现实应用。该项目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高功率涡旋激光系统的设计，建造和测试。该项目主要是实验性的，但实验室工作将得到理论和计算研究的支持，其中有很大的探索空间。这是一个很好的机会，参与从基础激光科学到应用的跨学科领域，学生将与帝国和国外的合作者合作。