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Optical modeling for the evaluation of HOWFSC on embedded processors by Milani, Kian; Douglas, Ewan; Pogorelyuk, Leonid; Mendillo, Christopher; Cahoy, Kerri; Belsten, Nicholas; Eickert, Brandon; Rao, Shanti is a scholarly article available to read on EtoBox.

What is Optical modeling for the evaluation of HOWFSC on embedded processors about?

The correction of quasi-static wavefront errors within a coronagraphic optical system will be a key challenge to overcome in order to directly image exoplanets in reflected light. These quasi-static errors are caused by mid to high-order surface errors on the optical elements as a result of manufacturing processes. Using high-order wavefront sensing and control (HOWFSC) techniques that do not introduce non-common path aberrations, the quasi-static errors can be corrected within the desired region of interest designated as the dark hole. For the future Habitable Worlds Observatory (HWO), HOWFSC algorithms will be key to attaining the desired contrasts. To simulate the performance of HOWFSC with space rated processors, optical models for a 6 m class space-borne observatory and a coronagraph have been developed. Phenomena such as the Talbot effect and beamwalk are included in the simulations using combinations of ray-based modeling and end-to-end propagation techniques. After integrating the optical models with the embedded processors, simulations with realistic computation times can be performed to understand the computational hardware performance that will be needed to maintain the

Author

Milani, Kian; Douglas, Ewan; Pogorelyuk, Leonid; Mendillo, Christopher; Cahoy, Kerri; Belsten, Nicholas; Eickert, Brandon; Rao, Shanti

Published

2024

Language

EN