Global optimization of multilayer dielectric coatings for precision measurements

Kavli Affiliate: Rana X. Adhikari

| First 5 Authors: Gautam Venugopalan, Francisco Salces-Cárcoba, Koji Arai, Rana X Adhikari,

| Summary:

We describe the design of optimized multilayer dielectric coatings for
precision laser interferometry. By setting up an appropriate cost function and
then using a global optimizer to find a minimum in the parameter space, we were
able to realize coating designs that meet the design requirements for spectral
reflectivity, thermal noise, absorption, and tolerances to coating fabrication
errors.

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