Noise-tolerant wavefront shaping in a Hadamard basis

TL;DR

This paper introduces a dual reference wavefront shaping algorithm that enhances focus intensity through turbid media by optimally utilizing available light, enabling multi-target shaping for imaging and transmission matrix measurements.

Contribution

The paper presents a novel dual reference algorithm that improves wavefront shaping efficiency and robustness in noisy conditions, outperforming existing methods.

Findings

Enhanced focus intensity in turbid media

Effective multi-target wavefront shaping

Improved performance over existing algorithms

Abstract

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.