HARMONI at ELT: high-contrast imaging performance estimation for FDR

HARMONI is the first light visible and near-IR integral field spectrograph for the ESO-ELT. It covers a large spectral range from 470 nm to 2450 nm with resolving powers from 3300 to 18000 and spatial sampling from 60mas to 4mas. It can operate in four Adaptive Optics modes – SCAO, HCAO, LTAO – or with NOAO. The project is preparing for Final Design Reviews (FDR). The high-contrast module is a dedicated subsystem that will enable the characterization of exoplanets thanks to a second stage ZELDA wavefront sensor, and to shaped pupils to create either a moderate 1e-5 contrast dark hole at a few L/D from the star, or a deeper dark hole with a 1e-6 contrast further away. We provide detection limits derived from the application of ADI and molecular mapping post-processing techniques on both numerical and experimental data for a variety of planets and observing conditions.