Electric field measurement for a 320GHz wave by Rydberg-atom based sensor
- Resource Type
- Conference
- Authors
- Kumagai, Motohiro; Nagano, Shigeo; Hayashi, Shin'Ichiro; Sekine, Norihiko
- Source
- 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2023 48th International Conference on. :1-2 Sep, 2023
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Radiation effects
Atom lasers
Wavelength measurement
Measurement by laser beam
Electric variables measurement
Glass
Cesium
- Language
- ISSN
- 2162-2035
Research on Rydberg-atom based sensers, which realize the SI-traceable measurements for the electric field of Terahertz wave, have been started. The ladder-type EIT (Electromagnetically Induced Transparency) signals were observed 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 320GHz wave whose frequency matched the $D-F$ transition then results in an observed Autler-Townes (AT) splitting of the EIT signals. The electric field strength was calculated by frequency measurement of the splitting separation.