The European STOP Digital Twin for Precision Optics

Structural-Thermal-Optical-Performance analysis, mastered in one closed loop.

STOPTima is an integrated software workflow to predict the optical performance of engineering systems under realistic structural and thermal operating conditions. STOPTIMA connects multiphysics simulation and optical analysis in a unified engineering workflow.

Optical performance does not exist in isolation

Your optical design is not floating in the air

Every lens, mirror, and detector lives on a structure. That structure expands, bends, and vibrates — and even sub-nanometre deformations can turn a diffraction-limited system into a performance-limited failure. So, an optical system operates in a physical environment where:

• Temperature changes.
• Structures deform.
• Components move.
• Optical surfaces change position and orientation.

These physical changes can affect the performance of the optical system.

These engineering disciplines are often treated separately. Traditional workflows connect solvers through manual file exports — losing fidelity, breaking the feedback loop, and forcing engineers to pad margins instead of validating physics

Structural analysis     Thermal analysis     Optical analysis

        │                     │                     │
        ▼                     ▼                     ▼

   Separate models      Separate workflows    Separate results

STOPTIMA connects them.

From physical conditions to optical consequences

STOPTIMA helps engineers investigate questions such as

• How does thermal loading affect optical performance?
• What is the impact of structural deformation?
• How sensitive is an optical system to mechanical displacement?
• How do operating conditions influence optical alignment?
• What optical performance can be expected in realistic environments?