Investigations of Rydberg-Atom Based THz-Wave Electric Field Sensor
2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS)(2023)
摘要
We have started research on Rydberg-atom based sensor, which is capable of SI-traceable electric field measurements of Terahertz waves. The ladder-type EIT (Electromagnetically Induced Transparency) signals were prepared by counterpropagating lasers of two distinct wavelength lasers corresponding to the S-P-D transitions of Cesium (Cs) atoms enclosed in a cylindrical glass cell. Irradiation of a THz-wave whose frequency matched the D-F transition then results in an observed Autler-Townes (AT) splitting of the EIT signal. We confirmed that the frequency separation of the splitting changes with the irradiated power of the 100GHz and 300 waves.
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关键词
SI-traceable,electrometry,Terahertz wave,Autler-Townes splitting
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