Next generation fibre laser pumped mid-infrared light sources

下一代光纤激光器泵浦中红外光源

• 批准号: 2123633
• 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: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2123633
• 关键词: Next; generation; fibre; laser; pumped

The mid-infrared (MIR) spectral region (~3-50 micron) is immensely important for applications in healthcare, manufacturing and defence. Key organic molecules exhibit strong and unique absorption of MIR light, including many atmospheric gases and complex proteins. Laser sources in the MIR are revolutionising the world we live in, for example, enabling the remote monitoring of pollution levels in our cities or accurately differentiating cancerous and healthy tissue in early-stage disease diagnosis. However, in comparison to the near-infrared (NIR), there are far fewer viable direct laser sources available in the MIR.This project aims to use newly emerging nonlinear materials to convert established high-power NIR fibre laser technology to the MIR. Novel parametric conversion techniques will be developed, to demonstrate a set of unique laser sources that are compact, efficient and far outperform existing solutions. These sources will be deployed in target applications with academic and industrial collaborators around the world.The student will be actively involved in the design, building and testing of high power fibre laser systems in the NIR, along with the corresponding wavelength conversion techniques necessary to generate MIR radiation. The project will involve working with collaborators at Imperial and internationally, providing the student with exposure to an exciting inter-disciplinary research environment.

中红外光谱区域（〜3-50微米）对于在医疗保健，制造和防御中的应用至关重要。关键有机分子表现出MIR光的强烈和独特的吸收，包括许多大气气体和复杂的蛋白质。 MIR中的激光来源正在彻底改变我们生活的世界，例如，在我们的城市中远程监测污染水平，或在早期疾病诊断中准确区分癌性和健康组织。但是，与近红外（NIR）相比，MIR中可用的可行直接激光来源少得多。该项目旨在使用新出现的非线性材料将已建立的高功率NIR NIR纤维激光技术转换为MIR。将开发新颖的参数转换技术，以展示一组紧凑，高效且远远超过现有解决方案的独特激光源。这些来源将与世界各地的学术和工业合作者一起部署在目标应用中。学生将积极参与NIR的高功率光纤激光系统的设计，构建和测试，以及产生MIR辐射所需的相应波长转换技术。该项目将涉及与帝国和国际上的合作者合作，从而为学生提供令人兴奋的跨学科研究环境。