Squeezing the fundamental temperature fluctuations of a high-Q microresonator
Squeezing the fundamental temperature fluctuations of a high-Q microresonator
复制标题
压缩高 Q 值微谐振器的基本温度波动
DOI：
10.1103/physreva.95.023822
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Q. Lin
中科院分区：
文献类型：
--
作者：
Xuan Sun;Rui Luo;Xiang Zhang;Q. Lin
光学谐振腔的温度波动是其腔稳定性的基本限制。在这里，我们表明，基本的高Q值微谐振器的温度波动可以抑制显着的纯光学手段，而不冷却设备的温度。发射到腔中的光波能够产生强烈的光热反作用，这极大地抑制了温度波动的光谱强度，并将其整体水平压缩了几个数量级。提出的光热温度压缩预计将显着提高光学谐振的稳定性，具有潜在的深远影响的广泛应用的高Q腔在传感，计量，非线性和量子光学。
Temperature fluctuations of an optical resonator underlie a fundamental limit of its cavity stability. Here we show that the fundamental temperature fluctuations of a high-Q microresonator can be suppressed remarkably by pure optical means without cooling the device temperature. An optical wave launched into the cavity is able to produce strong photothermal backaction which dramatically suppresses the spectral intensity of temperature fluctuations and squeezes its overall level by orders of magnitude. The proposed photothermal temperature squeezing is expected to significantly improve the stability of optical resonances, with potentially profound impact on broad applications of high-Q cavities in sensing, metrology, and nonlinear and quantum optics.