Novel Concepts in Astrocomb Creation, Stabilization and Metrology

Astrocomb 创建、稳定和计量的新概念

• 批准号: 2894204
• 金额: --
• 依托单位: Heriot-Watt University
• 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-2894204
• 关键词: Novel; Concepts; Astrocomb; Creation; Stabilization

This project will explore new concepts in astrocomb creation, stabilization and metrology using a Ti:sapphire-based optical frequency comb. Key targets include:the development of DMD-mirror based schemes for manipulating astrocombs, and isolating / measuring a single comb modes for the purpose of calibrating an astronomical spectrograph, the evaluation of passive Fabry-Perot filter cavities, including the use of thermally-steered bonded Fabry-Perot cavities to filter a smaller-mode-spacing comb. Techniques including Pound-Drever Hall locking may be used to ensure long-term locking. the evaluation of cw lasers for cavity locking and their integration into a Ti:sapphire comb. the extension of these techniques to other wavelengths, for example using OPO frequency conversion. This work forms part of a wider effort in the Heriot-Watt group to develop an astrocomb for the ELT telescope. Some parts of the work programme may therefore at times be conducted collaboratively with other members of the research group.

该项目将使用基于钛蓝宝石的光学频率梳探索星体梳创建、稳定和计量的新概念。主要目标包括：开发基于 DMD 镜的方案，用于操纵星梳，并隔离/测量单个梳模式以校准天文摄谱仪，评估无源法布里-珀罗滤波器腔，包括使用热引导粘合法布里-珀罗腔来过滤较小模式间距的梳。包括 Pound-Drever Hall 锁定在内的技术可用于确保长期锁定。用于腔锁定的连续激光器及其集成到钛蓝宝石梳中的评估。将这些技术扩展到其他波长，例如使用 OPO 频率转换。这项工作是赫瑞瓦特小组为 ELT 望远镜开发星体梳所做的更广泛努力的一部分。因此，工作计划的某些部分有时可能与研究小组的其他成员合作进行。