معرفی
Dr. Harald Herrmann is a Docent and Group leader of the 'Device Development' group at the Institute for Photonic Quantum Systems (PhoQS) at the University of Paderborn. His work focuses on quantum optics and integrated photonics, particularly leveraging lithium niobate waveguides for quantum device applications. Key research areas include single-photon source development, nonlinear optics, and cryogenic photonics systems.
His research interests emphasize the design and characterization of integrated quantum devices, with a strong focus on parametric down-conversion processes, second-harmonic generation, and thermal management in photonic materials. Herrmann's group actively investigates ferroelectric domain engineering in periodically poled lithium niobate and cryogenic effects on material properties.
Recent publications highlight advancements in ultrabright photon pair sources, pump filtering techniques for single-photon generation, and micro-heater-controlled second-harmonic generation. His work demonstrates a consistent focus on bridging fundamental quantum optics with practical applications in quantum communication and sensing networks.
Notable achievements include pioneering integrated squeezers for optical networks and demonstrating Hong-Ou-Mandel interference in lithium niobate-on-insulator (LNOI) platforms. Herrmann's contributions are characterized by interdisciplinary approaches spanning materials science, device engineering, and quantum information science.
