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，深层粉状物仍然是光谱中最后一部分的一部分之一。这部分是由于在此制度中严重缺乏激光来源。这是不幸的，因为它非常适合诸如范围内检测和监测物质等应用，这本身对于许多工业生产，医疗和安全过程非常重要。该计划将重点介绍低掉期（尺寸，重量和价格）连贯的深伏特激光来源的发展，然后在一系列令人兴奋且及时的应用中调查其效用，例如气体传感；非视线通信和荧光光谱检测。深紫外光的进一步应用是在以高250 nm为中心的狭窄光谱带中的表面进行灭菌。深紫外线也可以用于材料加工，其中短波长和吸收特性用于改变小尺度上的材料。在这种光源的开发中，出现了挑战，在这些光源中，需要针对发射波长，峰值或平均功率，梁质量或整体系统寿命（由于紫外线对光学，涂料，涂料和晶体的降解影响）而定制的性能。在改善下一代工业产品的背景下，该项目将着重于应对这些各种挑战。这项工作的性质将包括与工业合作伙伴的密切合作，以定期会议的形式演示和报告技术进度，并致力于在整体项目计划的成本和时间限制内实现项目目标。成功的候选人将基于固态平台的紧凑型激光系统的开发，其在可见到近红外的基本发射与参数非线性频率转换相结合，以生成指定的深紫外光。开发的光源将连续使用，以驱动预先提出的应用，特别着眼于拉曼光谱法。