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arXiv quant-ph/0509128quant-ph
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平均光子数的零差测量

Homodyne measurement of average photon number

J. G. Webb, T. C. Ralph, E. H. Huntington

摘要:

本文提出了一种利用零差探测测量任意边带频率处平均光子通量的新方案。该技术的实验实现除了零差检测器之外还需要AOM,并且不需要锁相。该技术表现出偏振,频率和空间模式的选择性,以及大大提高的速度,分辨率和动态范围相比,线性光电探测器和雪崩光电二极管(APD),与潜在的应用量子态层析成像和信息编码使用的光学频率的基础。实验数据也直接证实了真空噪声的量子力学描述。

英文摘要:

We describe a new scheme for the measurement of mean photon flux at an arbitrary optical sideband frequency using homodyne detection. Experimental implementation of the technique requires an AOM in addition to the homodyne detector, and does not require phase locking. The technique exhibits polarisation, frequency and spatial mode selectivity, as well as much improved speed, resolution and dynamic range when compared to linear photodetectors and avalanche photo diodes (APDs), with potential application to quantum state tomography and information encoding using an optical frequency basis. Experimental data also directly confirms the Quantum Mechanical description of vacuum noise.

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。

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