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OptiLayer:  Your Partner in Design and Post-Production Characterization of Optical Coatings


 Needle Optimization with Deep Search (NEW!  Version 11.65)

Deep Search variant of Needle Optimization should be used in situations when by some reasons you are interested in a design with a good performance, but the number of layers is strictly limited. At each large iteration Deep Search version tries to perform all possible needle insertions and subsequent refinements one by one. Achieved decreases of the merit function are analyzed and as the result the insertion variant providing the largest decrease of the merit function is accepted.

Therefore Deep Search variant is rather time-consuming and therefore is recommended as a choice only for specific problems. Advantages of this method start to appear at rather complicated problems only (more than 50 layers, complicated targets with phase, GD, GDD, etc. requirements).

Illustrating example. Designing a beamsplitter:

  • Spectral range from 620 nm to 680 nm;
  • Rs=Rp=50%;
  • AOI=450;
  • Thin film materials - Nb2O5/SiO2.

A 40-layer design with excellent performance has been obtained.

thin film design

After subsequent Design Cleaner (Deep Search) one can obtain a 22-layer beamsplitter with a good spectral performance.

multilayer design

22-layer design does not contain thin layers, the thinnest layer is of 50 nm thickness.                          

optical coating design





Easy to start

Icons 100x100 1OptiLayer 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

Icons 100x100 2Comprehensive manual in PDF format and e-mail support help you at each step of your work with OptiLayer.



Icons 100x100 3If you are already an experienced user, OptiLayer gives your almost unlimited opportunities in solving all problems arising in design-production chain. Visit our publications page and challenge page.


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