Publications

Laser-written optical waveguides in diamonds are a key technology for enhancing the coupling between defect centers and light, which boosts applications in nanoscale sensing and quantum information processing. However, the laser writing of photonic structures introduces strain in the diamond lattice, altering the properties of defect centers in ways that are not yet fully understood. This study shows that optically detected magnetic resonance spectroscopy can provide enough data to fully characterize the spatial distribution of strain in such devices, even without the need for a constant magnetic field. The findings offer an accessible tool that could significantly advance diamond-based quantum technologies.

Ref: M. S. Alam et al Phys. Rev. Applied 22, 024055 (arXiv)