Noise-tolerant wavefront shaping in a Hadamard basis

Light scattering is the main limitation for optical imaging. However, light can be focused through or inside turbid media by spatially shaping the incident wavefront. Wavefront shaping is ultimately limited by the available photon budget. We developed a new 'dual reference' wavefront shaping algorithm that optimally uses the available light. Our method allows for multi-target wavefront shaping, making it suitable for transmission matrix measurements or transmitting images. We experimentally confirmed the improvement of the focus intensity compared to existing methods. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Automated summary

Light scattering poses a major limitation for optical imaging, but can be overcome through wavefront shaping. A new 'dual reference' algorithm has been developed to optimally utilize available light and enable multi-target wavefront shaping, with experimental validation showing improved focus intensity compared to existing methods.