用于CQED和光谱学的二氧化硅微球回音壁模式的频率调谐
Frequency tuning of the whispering gallery modes of silica microspheres for CQED and spectroscopy
摘要：
我们已经调谐了熔融石英微谐振器的回音壁模式在800 nm处超过近1 nm，即超过0.5 FSR或10^6线宽的谐振器。这是通过一种基于双茎微球拉伸的新方法实现的。下面描述的设备将允许新的腔QED实验与这种高Q光学谐振器时，它是理想的，以优化其耦合到发射器与给定的过渡频率。这里展示的调谐能力是兼容的超高真空和低温操作，这应该是有用的，未来的实验与激光冷却原子或单量子点。
英文摘要：
We have tuned the whispering gallery modes of a fused silica microresonator over nearly 1 nm at 800 nm, i.e. over 0.5 FSR or 10^6 linewidths of the resonator. This has been achieved by a new method based on the stretching of a two-stem microsphere. The devices described below will permit new Cavity-QED experiments with this high-Q optical resonator when it is desirable to optimize its coupling to emitters with given transition frequencies. The tuning capability demonstrated here is compatible with both UHV and low temperature operation, which should be useful for future experiments with laser cooled atoms or single quantum dots.
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