Creating high-contrast patterns in multiple-scattering media via wavefront shaping

Abstract

Wavefront shaping allows focusing light through or inside strongly scattering media, but the background intensity also increases due to long-range correlations, reducing the target's contrast. By manipulating non-local intensity correlations of scattered waves in a disordered system with input wavefront shaping, we create high-contrast patterns behind strongly scattering media and targeted energy delivery into a diffusive system with minimal change in the surrounding intensity. These are achieved by introducing the contrast operator and the difference operator, and utilizing their eigenstates to maximize the target-to-background intensity contrast and energy difference. This work opens the door to coherent control of non-local effects in wave transport for practical applications.

References in corpus (5)

• Image Transmission Through an Opaque Material
• Light fields in complex media: mesoscopic scattering meets wave control
• Universal optimal transmission of light through disordered materials
• Recent advances in wavefront shaping techniques for biomedical applications
• Correlation-enhanced control of wave focusing in disordered media

Cited by in corpus (4)

• Mesoscopic Theory of Wavefront Shaping to Focus Waves inside Disordered Media
• Upper bounds on focusing light through multimode fibers
• Joint control of coherent transmission, reflection, and absorption
• Optimal universal bounds for waves with varied coherence based on supremum and infimum coherence spectra