E2M: Inverse Design
ComPhysics provides in-silico inverse design and robustness validation for optical stacks, extending beyond nominal design to include realistic package conditions and process tolerances.
Service Overview
We design optical stacks that remain robust under packaging and process tolerances.
We take the customer’s optical target, package constraints, material choices, material parameters
(including anisotropic refractive indices), and tolerance window, then search for candidate structures
using physics-based inverse design.
1. Inputs
- Optical target
- Desired specifications
- Package constraints
- Tolerance range: thickness and rotation
2. Inverse design
Search for optimized structures that are robust to the target specifications and tolerances.
3. Robust check
Re-evaluate the final candidate using Monte Carlo analysis and a k-factor risk metric.
4. Deliverables
Deliver the candidate stack design together with a sensitivity map.
Who is this for? & Proposal Flow
Tolerance Diagnostic
When: The current stack looks good nominally but varies too much after fabrication.
Review one current stack and diagnose the sensitivity map, hot spots, and redesign potential.
Robust Redesign
When: Material substitution or supplier change is required, or performance may degrade once the package, windows, or adhesive layers are included.
Propose one to three candidate stacks optimized for the stated tolerance envelope and package constraints.
Verification Pack / Repeat
When: The team wants sensitivity and hot spots before the next sample build.
Deliver a verification pack, then extend to annual support or repeat projects.
Commercial Entry Point
We recommend starting with a paid diagnostic before moving into a broader redesign engagement.
2-week Tolerance Diagnostic
Best for teams that want a fast technical review before committing to a broader redesign scope.
- Review of one current nominal stack
- Tolerance-aware verification pass
- Sensitivity map and hot-spot identification
- Short diagnostic summary and next-step guidance
Robust Redesign
Appropriate when package constraints, supplier changes, or broader redesign work are required.
- One to three candidate stack directions
- Optimization against the stated tolerance envelope
- Package-aware redesign framing
- Quoted after intake review
Verification Pack / Repeat Engagement
Good for teams that want additional verification cycles, repeat projects, or continuing support.
- Follow-on verification work
- Repeat engagement for updated stacks
- Optional annual support pathway
- Quoted based on scope and cadence
Verification Example & Package-Aware Stack
Representative Verification Example
We validate not only the design candidate itself, but also its behavior under realistic tolerances and packaging conditions.
| Avg total T (S) | Avg total T (P) | Avg |DOCP| (S)* | Avg phase error (S) |
|---|---|---|---|
| 95.08% | 94.90% | 0.9969 | 1.93° |
*DOCP: Degree of Circular Polarization. Data basis: summary from a recent packaged verification run.
*Positioned as in-silico robustness validation, not a guarantee of measured fab yield.
Package-aware stack structure
- MgF₂ AR
- FS window
- NOA61
- Liquid Crystal with z-axis rotation
- Zeonex
- Liquid Crystal with z-axis rotation
- NOA61
- FS window
- MgF₂ AR
Request a Consultation
Ready to optimize your optical stack? Start with a short fit call or request a paid diagnostic.
- Your current optical stack structure
- Material parameters, including anisotropic refractive indices if applicable
- Target specifications
- Package constraints
- Tolerance window (thickness, rotation, alignment, etc.)
For faster review, attach your current stack structure and material parameters in the first email.