### Application of robust  algorithm to designing dispersive mirrors

 OptiLayer allows taking into account requirement on stability of the design on errors in layer parameters. This requirement is very important for ultrafast coatings. Example: Dispersive mirror that has to compensate GDD of -200 fs2 in the spectral range from 700 to 900 nm. Substrate: B260 glass; Layer Materials: Nb2O5 and SiO2. All OptiLayer algorithms can work in the Robust mode. Absolute errors in layer thicknesses can be estimated at the $$\sigma=0.5$$ nm level: Convenient design solution: 88 layers, total thickness 9273.5 nm. Excellent GDD spectral performance has been obtained: Robust design solution: 66 layers, total thickness 9957.5 nm. Good GDD spectral performance has been achieved: Error analysis of the convenient design solution: level of absolute thickness errors of 0.5 nm was specified. Error analysis of the robust design solution at the same level of absolute thickness errors. It is obvious, that the design is more stable. Learn more in our publications: T. Amotchkina, M. Trubetskov, A.Tikhonravov, J. Kruschwitz, Optical Design: Advanced thin-film software techniques improve design-to-fabrication workflow, Laser Focus World, January 2015 V. Pervak, M. Trubetskov, and A. Tikhonravov, "Robust synthesis of dispersive mirrors," Opt. Express 19, 2371-2380 (2011).

### Easy to start

OptiLayer provides user-friendly interface and a variety of examples allowing even a beginner to effectively start to design and characterize optical coatings.        Read more...

### Docs / Support

Comprehensive manual in PDF format and e-mail support help you at each step of your work with OptiLayer.