Affiliation:
1. Université de Toulouse, CNRS
2. Université Toulouse III—Paul Sabatier
Abstract
We present a design strategy for grating magneto-optical traps (GMOTs). It takes the three most relevant optical properties for laser cooling (radiation pressure balance, specular reflection cancellation, and diffracted polarization) to build a scalar figure of merit. We use a rigorous coupled wave analysis (RCWA) simulation to find a geometry that maximizes this figure of merit. We also introduce a criterion that takes into account the robustness of the manufacturing processes to select a geometry that is reliable to manufacture. Finally, we demonstrate that the fabricated grating exhibits the expected optical properties and achieves typical GMOT performance.
Funder
Centre National d’Etudes Spatiales
Agence Nationale de la Recherche
QAFCA
EUR grant NanoX