Report on the 2023 LaserNetUS Data & Diagnostics Workshop

This comprehensive report from the LaserNetUS Data & Diagnostics Workshop, held in October 2023, was created to discuss the future of diagnostics in high-power laser experiments. The report outlines the critical role of diagnostics in bridging the gap between experimental data and theoretical models, reviews current state-of-the-art capabilities, identifies their limitations, and proposes a Common Diagnostic Program (CDP) to centralize and standardize diagnostic tools across various facilities.