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arXiv 2301.07792physics.opticsphysics.ins-det
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将锥形光纤的基础扭转机械模式反馈冷却至30 mK

Feedback-cooling the fundamental torsional mechanical mode of a tapered optical fiber to 30 mK

Felix Tebbenjohanns, Jihao Jia, Michael Antesberger, Adarsh Shankar Prasad, Sebastian Pucher, Arno Rauschenbeutel, Jürgen Volz, Philipp Schneeweiss

AI总结:

该研究利用激光研究锥形光纤纳米纤维腰部的基础扭转机械模式,发现其品质因数高达10^7、Qf乘积达1 THz,并通过主动反馈将热运动从室温冷却至28(7) mK,为新型光纤传感器和混合量子光力学平台奠定基础。

摘要:

锥形光纤(TOFs)在物理学和光学技术的许多领域都有应用,从将光耦合到纳米光子元件,到光学传感与放大,再到与量子发射器接口。在此,我们利用激光研究了锥形光纤纳米纤维腰部的基础扭转机械模式。我们发现该振子的品质因数高达$10^7$,$Qf$乘积达到1 THz。我们通过主动反馈将热运动从室温阻尼至28(7) mK。我们的结果可能促成新型光纤传感器,并为新型混合量子光力学平台奠定基础。

英文摘要:

Tapered optical fibers (TOFs) are used in many areas of physics and optical technologies ranging from coupling light into nanophotonic components to optical sensing and amplification to interfacing quantum emitters. Here, we study the fundamental torsional mechanical mode of the nanofiber-waist of a TOF using laser light. We find that this oscillator features a quality factor of up to $10^7$ and a $Qf$ product of 1 THz. We damp the thermal motion from room temperature to 28(7) mK by means of active feedback. Our results might enable new types of fiber-based sensors and lay the foundation for a novel hybrid quantum optomechanical platform.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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