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Plasmon Enhanced Terahertz Electron Paramagnetic Resonance

Project description

Novel approach pushes magnetic sensing resolution to the sub-micrometre

Applying an external magnetic field and observing the absorption of electromagnetic radiation, electron paramagnetic resonance (EPR) provides valuable information about the electronic structure, molecular environment and interactions of paramagnetic materials. The EU-funded PETER project aims to develop a platform integrating plasmon-enhanced terahertz EPR spectroscopy and scanning microscopy for high-sensitivity analysis of paramagnetic materials. By incorporating terahertz plasmonic antennas into surfaces and scanning probe tips, researchers will significantly enhance EPR sensitivity and spatial resolution, enabling unprecedented sub-micrometre mapping capabilities. Project results will impact various fields such as chemistry, biology, medicine, materials science, and physics.


We propose to establish Plasmon-enhanced Terahertz Electron Paramagnetic Resonance spectroscopy and scanning microscopy as a unique Electron Paramagnetic Resonance (EPR) platform for high-sensitivity local analysis of paramagnetic organic and inorganic species and materials. Here, we will deliver novel hardware and infrastructure providing ground-breaking innovation in the magnetic sensing and imaging. The platform is conceptually based on incorporating THz plasmonic antennas onto surfaces (spectroscopy) and scanning probe tips (microscopy), resulting in a strong, local enhancement (about two orders of magnitude) of the magnetic sensing field.
Extending to the THz region enables effective utilization of plasmonic structures resulting in a radical improvement of EPR sensitivity (about four orders of magnitude) and spatial resolution going beyond the diffraction limit, and thus introduce a scanning probe microscopic regime into this field. This will make it possible to map the sample over its area and so to localize its properties with unprecedented resolution (below 1 micrometre). Such a significant enhancement of the EPR performance will open new ways in magnetic sensing technologies enabling for instance to study in situ functional centres in a wide variety of materials, and, generally, set a new direction in the development of the EPR-employing industry.
EPR finds its applications in many scientific areas covering chemistry, biology, medicine, materials science, physics, etc. Hence, introducing this new method would have a profound impact on scientific, technological and societal stakeholders in many research and industrial communities.

Call for proposal


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Net EU contribution
€ 687 646,25
601 90 Brno Stred

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Česko Jihovýchod Jihomoravský kraj
Activity type
Higher or Secondary Education Establishments
Total cost
€ 687 646,25

Participants (3)