Speaker
Description
A novel concept of GEM-like structures has recently been proposed, in which a wavelength-shifting (WLS) material is deposited inside the holes of the structure. This approach can enhance light collection efficiency in Ar-based dual-phase TPCs, addressing challenges associated with the gas–liquid interface as well as scalability limitations in future detectors.
In this work, we present recent progress in the development of WLS-enabled FAT-GEM-like structures, including the production of PMMA-based optical amplification devices using laser-based techniques, together with their initial performance assessment. This method provides a low-cost, reproducible, and low-radioactivity solution, making it well suited for large-scale production in next-generation rare-event search experiments.