The PD2025 Workshop will cover a broad range of topics reflecting the latest developments and challenges in photon-detector science. The scientific programme is structured around three main thematic areas

• Application Areas — showcasing the diverse fields where photon detectors play a key role, from fundamental physics to societal impact.
• Photosensor Technologies — focusing on the design, development, and characterisation of current and emerging photodetector types.
• Enabling Technologies and R&D — highlighting cross-disciplinary innovations that support performance, integration, and future advances.

Together, these tracks represent the core themes of the workshop and outline the scope of discussions and presentations that will shape PD2025.

Application Areas

• Accelerators and Colliders
• Astroparticle and Neutrino Physics
• Astrophysics, Astronomy and Space Applications
• Cryogenic and Noble Liquid Detectors
• Medical and Societal Applications

Photosensor Technologies

• Analog Photosensors
• Digital Photosensors
• Gaseous Photodetectors
• Vacuum Photodetectors (PMT, MCP, Hybrid)

Enabling Technologies and R&D

• Electronics and Readout
• New Materials and Technologies
• Radiation Damage
• Simulation and Modelling
• Timing Applications