报告题目：Stabilizing single-frequency diamond Raman lasers

报告人：Richard Mildren 教授（澳大利亚麦考瑞大学）

报告时间：2026年8月13日（周四）上午10:00

报告地点：光电所二层报告厅

报告摘要：  

Diamond Raman lasers are promising ultra-narrow-linewidth sources with exceptionally low quantum-limited linewidths. Achieving stable single-frequency operation at high power and high efficiency, however, is challenging due to competing nonlinear processes within the Raman medium. Recent advances in cavity design and understanding of the mechanisms responsible for mode instability have enabled these properties to be achieved simultaneously. In this presentation, I will discuss the advantages of Raman laser systems and recent progress in high-power, high-efficiency, single-frequency diamond Raman lasers. A new cavity design is described that suppresses destabilizing higher-order nonlinear processes while maintaining efficient Raman conversion and narrow-linewidth operation. These advances in mode stabilization may benefit applications in laser guide stars and precision optical technologies, including quantum science, sensing, and optical atomic clocks.

报告人简介：

Rich Mildren (Australian Research Council Future Fellow 2010-2014) is a Professor of Physics in the School of Mathematical and Physical Sciences at Macquarie University. His PhD (1997) and early postdoctoral research (1998-2004) was in the plasma kinetics of high-power gas lasers. During this period, he was a visiting fellow at the National Research Council in Pisa, Italy, supported by a scholarship from the Italian Minister of Foreign Affairs. For 3 years (2005-2008) he led R&D for a University spin-off company in wavelength-switchable medical lasers, during which time he brought several medical laser products through to the stage of medical device regulatory approval. His most recent focus, conducted in the MQ Photonics Research Centre, is in advanced nonlinear optical materials such as diamond. He has 6 awarded patents and authored 130+ peer-reviewed journal articles. He received the Australian Museum Eureka Award for Outstanding Science for Safeguarding Australia in 2017 and was elected Fellow of Optica (formerly OSA) in 2018.

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二审丨曲睿娟

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