点击次数：

论文类型：期刊论文

发表时间：2019-05-01

发表刊物：JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

收录刊物：SCIE

卷号：36

期号：5

页面范围：1363-1369

ISSN号：0740-3224

摘要：Optomechanical systems can convert the microwave signal into the optical one, which provides us a candidate to detect weak microwave signal. Employing an optomechanical system, we investigate the effects of the non-Markovian environment on improving the sensitivity of weak microwave signal detection. Our results show that the non-Markovian environment with superohmic spectrum supports the improvement of sensitivity. A comparison between the direct measurement and homodyne detection shows that the latter can enhance the output power spectrum and reduce the additional noise because of the interference. (C) 2019 Optical Society of America