基于Rydberg原子天线的太赫兹测量

Rydberg原子在微波和太赫兹频段具有极大的电偶极矩,利用量子干涉效应可实现对该频段电磁波场强的高灵敏探测,理论上灵敏度可达到远高于现有探测技术的水平.基于Rydberg原子量子效应的电磁场探测及精密测量技术在太赫兹的场强和功率计量、太赫兹通信和太赫兹成像等方面有着巨大的应用前景.本文回顾了基于Rydberg原子量子干涉效应实现电磁波电场自校准和可溯源测量的基本理论和实验技术,详细介绍了基于Rydberg原子的高灵敏太赫兹场强测量、太赫兹近场高速成像和太赫兹数字通信的基本原理和技术方案.最后简单介绍了本研究团队正在开展的基于Rydberg原子的太赫兹探测工作.

Terahertz measurement based on Rydberg atomic antenna

Rydberg atoms have large electric dipole moments in the microwave and terahertz frequency band.The detection of electromagnetic field intensity in this frequency band can be achieved by using quantum interference effects.Theoretically,this detection method can have a sensitivity much higher than the traditional detection methods.Therefore,electromagnetic field detection and precision measurement technology based on Rydberg atomic quantum effects has great application prospects in terahertz field strength and power measurement,terahertz communication and imaging.In this paper,we review the basic theory and experimental methods to realize the self-calibration and traceability measurement of electromagnetic field based on Rydberg atomic quantum effects.The principle and technical scheme of high-sensitivity terahertz field strength measurement,terahertz near-field high-speed imaging and terahertz digital communication based on Rydberg atom are introduced in detail.Finally,the processing terahertz detection work based on Rydberg atom by our research team is also mentioned briefly.