Novel laser-driven, short-wavelength light sources

新型激光驱动的短波长光源

• 批准号: 2892579
• 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: 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-2892579
• 关键词: Novel; laser; driven; short; wavelength

In this project, we aim to develop novel short-wavelength light sources, with a primary focus on the ultra-violet (UV) region of the spectrum. UV laser sources are scarce, and current options for nonlinear frequency conversion are limited. By addressing these challenges, we will open up exciting possibilities for bright, pulsed UV sources, including the field of free-space optical communications. The project encompasses two exciting avenues to develop novel UV sources, each holding great promise for ground-breaking results that can be published in top-tier journals. Firstly, we will explore the use of nanophotonic targets and metasurfaces illuminated by intense visible lasers to generate UV harmonic radiation. Secondly, we will investigate UV laser action in wide band-gap semiconductors through two-photon absorption pumping. While the project's primary focus lies in advancing our understanding of the fundamental physics involved, there will be opportunities to set up proof-of-principle experiments for real-world applications in communications using the developed UV sources.

在这个项目中，我们的目标是开发新的短波长光源，主要集中在光谱的紫外线（UV）区域。紫外激光源稀缺，目前非线性频率转换的选择有限。通过应对这些挑战，我们将为明亮的脉冲紫外光源开辟令人兴奋的可能性，包括自由空间光通信领域。该项目包括两个令人兴奋的途径来开发新的紫外线源，每一个都有很大的希望，可以在顶级期刊上发表突破性的结果。首先，我们将探索使用纳米光子目标和超颖表面照射强烈的可见激光产生紫外谐波辐射。其次，我们将研究宽禁带半导体中双光子吸收泵浦的紫外激光作用。虽然该项目的主要重点在于推进我们对所涉及的基础物理学的理解，但将有机会使用开发的紫外光源为通信中的实际应用建立原理验证实验。