Markus Gräfe

Markus Gräfe is a Professor in the Department of Physics at Technische Universität Darmstadt. His research focuses on quantum optics, quantum imaging, and photonics, with particular emphasis on entangled photon systems, quantum imaging techniques beyond classical limits, and advanced photon-pair sources. He leads efforts in developing novel quantum imaging modalities such as mid-infrared scanning microscopy and synthetic holography using undetected photons.

His work integrates nonlinear optics, quantum state engineering, and quantum device fabrication, addressing applications in quantum communication, quantum sensing, and biophotonics. Key innovations include ultrabright polarization-entangled photon sources and methods for enhancing two-photon absorption in fluorescent materials. Gräfe’s research also explores foundational aspects like Stokes parameters for quantum information science and phase diffusion in quantum random number generation.

Recent advancements include real-time quantum imaging systems at video rates and experimental demonstrations of quantum holography distillation. His contributions bridge theoretical quantum mechanics and practical implementations, pushing the boundaries of quantum technologies for imaging and communication.