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Journal Article
Optimization of a Radio-frequency Atomic Magnetometer Toward Very Low Frequency Signal Reception
- Authors
- Hyun Joon Lee, Ye Jin Yu, Jang-Yeol Kim, Jaewoo Lee, Han Seb Moon, In-Kui Cho
- Issue Date
- 2021-06
- Citation
- Current Optics and Photonics, v.5, no.3, pp.213-219
- ISSN
- 2508-7266
- Publisher
- 한국광학회
- Language
- English
- Type
- Journal Article
- Abstract
- We describe a single-channel rubidium (Rb) radio-frequency atomic magnetometer (RFAM) as a receiver that takes magnetic signal resonating with Zeeman splitting of the ground state of Rb. We optimize the performance of the RFAM by recording the response signal and signal-to-noise ratio (SNR) in various parameters and obtain a noise level of 159 fT/√Hz around 30 kHz. When a resonant radiofrequency magnetic field with a peak amplitude of 8.0 nT is applied, the bandwidth and signal-to-noise ratio are about 650 Hz and 88 dB, respectively. It is a good agreement that RFAM using alkali atoms is suitable for receiving signals in the very low frequency (VLF) carrier band, ranging from 3 kHz to 30 kHz. This study shows the new capabilities of the RFAM in communications applications based on magnetic signals with the VLF carrier band. Such communication can be expected to expand the communication space by overcoming obstacles through the high magnetic sensitive RFAM.
- KSP Keywords
- 50 Hz, Communication space, Frequency signal, High magnetic, Magnetic signal, Overcoming obstacles, Peak amplitude, Response signal, Signal noise ratio(SNR), Signal-to-Noise, Single Channel
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC)
(CC BY NC)
