Long Wave Infrared Wavefront Reconstruction Through Complex Media

Anwesh Bhattacharya (1) , Pascal Berto (2) , Valentina Krachmalnicoff (1) , Ignacio Izeddin (1) , Gilles Tessier (2) , Yannick De Wilde (1)

1 IL - Institut Langevin - Ondes et Images (UMR7587)
2 Institut de la Vision

A novel broadband infrared (IR) speckle imaging system with a thin scatterer and an uncooled microbolometric camera is employed to encode wavefront phase variations as local speckle deformations. The phase reconstruction from speckle shifts using a fast diffeomorphic algorithm ultimately demonstrates IR wavefront reconstruction through complex media.

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]

Anwesh Bhattacharya, Pascal Berto, Valentina Krachmalnicoff, Ignacio Izeddin, Gilles Tessier, et al.. Long Wave Infrared Wavefront Reconstruction Through Complex Media. Conference on Lasers and Electro-Optics CLEO: Applications and Technology 2022, May 2022, San Jose, United States. pp.JF2A.2, ⟨10.1364/CLEO_AT.2022.JF2A.2⟩. ⟨hal-03861336⟩