THz electrometry with Rydberg atoms and all IR lasers

Chen, Shuying; Reed, Dominic; Downes, Lucy A.; MacKellar, Andrew R.; Almuhawish, Nourah F.; Jamieson, Matthew J.; Adams, Charles S.; Weatherill, Kevin J.

Abstract

Rydberg electromagnetically induced transparency (EIT) and Autler-Townes (AT) splitting in an atomic vapor cell can be used as novel methods for electric-magnetic field detection. Here we make use of 3 infrared lasers to realize a Rydberg EIT system in a thermal rubidium vapor cell. With the AT splitting induced by the THz radiation, we observe a linear trend between THz field amplitude and the frequency splitting of the absorption dips and EIT transmission peaks. Due to the well-known atomic transition dipole moment of the Rydberg state, the THz electric field can be calibrated from the frequency splitting, making this Rydberg atomic measurement system a practical tool for THz field detection.

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: 2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
• Online Publication Date: Oct 21, 2021
• Publication Date: 2021
• Deposit Date: Apr 7, 2022
• Publisher: Institute of Electrical and Electronics Engineers
• Book Title: 2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
• DOI: https://doi.org/10.1109/irmmw-thz50926.2021.9567392
• Public URL: https://durham-repository.worktribe.com/output/1137487