Speakers
Description
The Dresden Advanced Light Infrastructure (DALI) project at Helmholtz-Zentrum Dresden-Rossendorf (HZDR) aims at establishing a cutting-edge light source facility for pioneering research in materials science, biology, and interdisciplinary applications. Unlike most existing light sources that focus on UV and X-ray generation, DALI will provide a continuously tunable photon source spanning the terahertz (THz) to mid-infrared (mid-IR) range (0.1–30 THz), offering exceptional flexibility for a wide array of experimental needs.
To meet the diverse experimental needs, DALI integrates several complementary THz generation schemes within a two-superconducting-linac layout. This contribution presents a comparative overview of these concepts, including coherent transition radiation from compressed electron bunches, narrow-band mid-IR emission from undulators operated in optical-klystron and FEL-oscillator configurations, and broadband superradiant THz emission from strongly compressed beams in short undulators. Key design trade-offs—pulse energy, tunability, spectral bandwidth, and limitations imposed by beam quality, space charge, and slippage—are discussed. This presentation summarizes the underlying accelerator physics, expected performance, and the integration strategy within the DALI layout, providing the first unified description of THz source options planned for the facility.
| In which format do you inted to submit your paper? | LaTeX |
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