论文标题
具有超鼻涕光谱的磁诱导光学透明度
Magnetically Induced Optical Transparency With Ultra-Narrow Spectrum
论文作者
论文摘要
磁诱导的光学透明度（MIOT）是一种实现腔量子电动动力学（腔QED）系统中狭窄传输光谱的技术，在最近的冷88SR原子在光学腔中的实验中，它证明了这一点[物理学。莱特牧师。 118，263601（2017）]。在此实验中，Miot诱导了一个新的狭窄传输窗口，用于探针光束，该探针梁高度免疫了腔模式频率的波动。该传输窗口的线宽接近电子3P1状态的衰减速率（约2pi*7.5kHz），并且远小于空腔模式频率的不确定性（约为2pi*150kHz）。在这项工作中，我们提出了一种方法，以进一步将MIOT引起的传输窗口的线宽进一步，借助两个拉曼梁，将电子3P1状态耦合到3S1STATE，将3S1STATE分别为3P0状态。通过这种方法，可以通过数量级减少传输线宽。此外，拉曼梁几乎没有改变相对传输功率或探针梁的传输速率的峰值。我们的结果有助于研究基于空腔量子电子动力学（腔 - 测气）的精确测量和其他量子光学过程。
Magnetically induced optical transparency (MIOT) is a technique to realize the narrow transmission spectrum in a cavity quantum electric dynamics (cavity QED) system, which is demonstrated in the recent experiment of cold 88Sr atoms in an optical cavity [Phys. Rev. Lett. 118, 263601 (2017)]. In this experiment, MIOT induces a new narrow transmission window for the probe beam, which is highly immune to the fluctuation of the cavity mode frequency. The linewidth of this transmission window approaches the decay rate of the electronic 3P1 state (about 2pi*7.5kHz) and is much less than the uncertainty of the cavity mode frequency (about 2pi*150kHz). In this work, we propose an approach to further reduce the linewidth of this MIOT-induced transmission window, with the help of two Raman beams which couples the electronic 3P1 state to the3S1state, and the3S1state to the 3P0 state, respectively. With this approach, one can reduce the transmission linewidth by orders of magnitude. Moreover, the peak value of the relative transmission power or the transmission rate of the probe beam is almost unchanged by the Raman beams. Our results are helpful for the study of precision measurement and other quantum optical processes based on cavity quantum electronic dynamics (cavity-QED).
