Application:
Precise and fast vectorial magnetic field sensing is vital in a range of high-impact fields, including geochemical exploration, medical imaging, archeological mapping, data storage, and defense/security. Existing technologies often lack the necessary combination of sensitivity, speed, and directional accuracy, creating a critical gap in advanced sensing solutions.
Our Innovation:
We present a Phase Modulated Electromagnetically Induced Transparency Vectorial Magnetic Sensor (PMEITVMS) — a novel quantum-optical sensor that exploits interference patterns in atomic vapor induced by strong phase modulation of laser light. This approach enables high-resolution detection of both the magnitude and direction of magnetic fields, using the quantum properties of Zeeman splitting and EIT.
The system achieves:
- Magnitude resolution on the order of pT·Hz⁻¹ᐟ²
- Directional resolution around 10 mrad·Hz⁻¹ᐟ²
- Fast measurement rates (~kHz), ideal for dynamic environments
Advantages:
- Vectorial measurement: Simultaneous amplitude and directional detection
- High sensitivity: Narrow EIT windows enable detection of subtle field variations
- Fast and accurate: Unique signal processing using frequency combs and pattern recognition
- Novel use of phase modulation: Enhances resolution and information density
Commercial Opportunity:
This technology offers strong potential across industries that require fast, sensitive, and directional magnetic field sensing, including defense, medical imaging, and geophysical exploration.
