高纯纳米金刚石在真空中无加热的光悬浮
Optical levitation of high purity nanodiamonds in vacuum without heating
摘要：
在高真空中含有氮空位中心的悬浮纳米金刚石是基础物理学中许多现象的潜在测试平台。然而，由于捕获激光的光吸收引起的加热，迄今为止的实验仅限于低真空。我们表明，铣削纯金刚石产生纳米金刚石，不加热的光强度高于700 GW/m $^2$低于5毫巴的压力。这一进展现在意味着纳米金刚石在光偶极阱中可达到的真空水平不再受温度限制。
英文摘要：
Levitated nanodiamonds containing nitrogen vacancy centres in high vacuum are a potential test bed for numerous phenomena in fundamental physics. However, experiments so far have been limited to low vacuum due to heating arising from optical absorption of the trapping laser. We show that milling pure diamond creates nanodiamonds that do not heat up as the optical intensity is raised above 700 GW/m$^2$ below 5 mbar of pressure. This advance now means that the level of attainable vacuum for nanodiamonds in optical dipole traps is no longer temperature limited.
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。
