Novel laser sources for deep-UV applications

适用于深紫外应用的新型激光源

• 批准号: 2898366
• 金额: --
• 依托单位: University of Strathclyde
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2898366
• 关键词: Novel; laser; sources; deep; UV

The deep-ultraviolet remains one of the last untapped portions of the spectrum in terms of wide industrial applications. This is, in part, due to the severe lack of laser sources operating in this regime. This is unfortunate, as it is ideally suited to applications such as the detection and monitoring of substances at range, which is itself extremely important to a number of industrial production, medical and safety processes. This program will be focused on the development of low SWAP (size, weight and price) coherent deep-UV laser sources, and then investigating their utility in a range of exciting and timely applications such as gas sensing; non-line-of-sight communications and fluorescence spectroscopic detection. Further applications of deep-UV light are in sterilisation of surfaces utilizing a narrow spectral band centred around 250 nm with high germicidal efficiency. Deep UV light can also be utilised for material processing, where the short wavelength and absorption properties are used to alter materials on small scales. Challenges arise in the development of such light sources where application tailored performance with respect to emission wavelength, peak or average powers, beam quality or overall system lifetime (due to degrading effects of UV light on optics, coatings and crystals) are required. This project will be focussed on addressing these various challenges in the context of improving next generation industrial products. The nature of this work will include close collaboration with industrial partners for the demonstration and reporting of technical progress in form of regular meetings and working towards fulfilling project goals within the cost and time constraints of the overall project plan. The successful candidate will work on the development of compact laser systems based on solid-state platforms with fundamental emission in the visible to near-IR in combination with parametric nonlinear frequency conversion for the generation of the specified deep-UV light. The developed light sources will consecutively be used to drive prementioned applications with a particular focus on Raman spectroscopy.

就广泛的工业应用而言，深紫外线仍然是光谱中最后未开发的部分之一。这部分是由于严重缺乏在这种状态下工作的激光源。这是不幸的，因为它非常适合应用，如检测和监测范围内的物质，这本身对许多工业生产，医疗和安全过程非常重要。该计划将专注于低SWAP（尺寸，重量和价格）相干深紫外激光源的开发，然后研究它们在一系列令人兴奋和及时的应用中的效用，如气体传感;非视线通信和荧光光谱检测。深紫外光的进一步应用是利用以250 nm为中心的窄光谱带进行表面灭菌，具有高杀菌效率。深紫外光也可用于材料加工，其中短波长和吸收特性用于小规模改变材料。在这种光源的开发中出现了挑战，其中需要关于发射波长、峰值或平均功率、光束质量或整体系统寿命（由于UV光对光学器件、涂层和晶体的劣化效应）的应用定制性能。该项目将专注于在改进下一代工业产品的背景下解决这些各种挑战。这项工作的性质将包括与工业伙伴密切合作，以定期会议的形式展示和报告技术进展，并努力在总体项目计划的成本和时间限制范围内实现项目目标。成功的候选人将致力于开发基于固态平台的紧凑型激光系统，该平台具有可见光至近红外的基本发射，并结合参数非线性频率转换，用于产生指定的深紫外光。开发的光源将连续用于驱动上述应用，特别关注拉曼光谱。