Optimisation of a radio-frequency atomic magnetometer: a Uniform Design approach

Area of Science:

• Atomic physics
• Quantum sensing

Background:

• High-sensitivity operation of radio-frequency atomic magnetometers (RF-AMs) depends on precise system parameter tuning.
• Empirical optimization of these parameters is time-consuming and labor-intensive, especially for varied tasks.

Purpose of the Study:

• To demonstrate an efficient approach for RF-AM performance optimization using Uniform Design (UD).
• To reduce the number of experimental runs needed for optimizing RF-AM sensitivity.

Main Methods:

• Application of an open-loop optimization technique based on Uniform Design (UD).
• Optimization of an unshielded RF-AM using a 4-factor-12-level UD experimental parameter space.

Main Results:

• Efficient optimization of the atomic magnetometer at various frequencies was achieved.
• The UD approach proved effective for both AC and DC sensitivity optimization.
• The procedure significantly reduced the number of required experimental runs.

Conclusions:

• The UD-based method provides an efficient and effective approach to RF-AM optimization.
• This technique minimizes experimental effort without requiring detailed system models.
• The procedure is suitable for autonomous self-calibration of RF-AM devices.