Edmund John Railton Kelleher

Edmund John Railton Kelleher is an Associate Professor in the Department of Electrical and Photonics Engineering at the Technical University of Denmark (DTU), located in Kgs. Lyngby, Denmark. His research is centered on ultrafast infrared and terahertz science, with strong affiliations to advanced photonics and nanoscale spectroscopy.

His research interests span a broad range of topics in photonics and materials science, including fiber laser physics, terahertz engineering, nonlinear optics, and ultrafast dynamics in 2D materials. He is particularly active in developing and applying terahertz nanoscopy techniques for characterizing novel materials like MoS2 nanoribbons and WTe2 semimetals. His work bridges fundamental physics and applied engineering, with applications in photonic devices and renewable energy materials.

The recent publications highlight a consistent focus on terahertz spectroscopy, coherent phonon control, and nanoscale material characterization. These works demonstrate a strong interdisciplinary trend, combining ultrafast laser techniques with condensed matter physics and electrical engineering to probe dynamic processes at femtosecond to picosecond timescales.

Dr. Kelleher is actively involved in research mentoring and leadership. He serves as main supervisor or co-supervisor for multiple PhD projects at DTU, particularly in areas related to terahertz spectroscopy, perovskite solar cells, and near-field imaging. These projects are externally funded and reflect a robust research program with both academic and technological implications.

He is a key investigator in several advanced research initiatives, including projects on deep sub-wavelength terahertz near-field spectroscopy and ultrafast dynamics in metal halide perovskites. These efforts are conducted within collaborative teams involving experts in nanomaterials, optics, and device engineering, indicating a strong network of interdisciplinary collaboration.