Focusing Light through Random Photonic Media by Binary Amplitude Modulation

Abstract

We study the focusing of light through random photonic materials using wavefront shaping. We explore a novel approach namely binary amplitude modulation. To this end, the light incident to a random photonic medium is spatially divided into a number of segments. We identify the segments that give rise to fields that are out of phase with the total field at the intended focus and assign these a zero amplitude, whereas the remaining segments maintain their original amplitude. Using 812 independently controlled segments of light, we find the intensity at the target to be 75 +/- 6 times enhanced over the average intensity behind the sample. We experimentally demonstrate focusing of light through random photonic media using both an amplitude only mode liquid crystal spatial light modulator and a MEMS-based spatial light modulator. Our use of Micro Electro-Mechanical System (MEMS)-based digital micromirror devices for the control of the incident light field opens an avenue to high speed implementations of wavefront shaping.

References in corpus (5)

• Random-Matrix Theory of Quantum Transport
• Measuring the Transmission Matrix in Optics : An Approach to the Study and Control of Light Propagation in Disordered Media
• Exploiting disorder for perfect focusing
• Image Transmission Through an Opaque Material
• Spatial amplitude and phase modulation using commercial twisted nematic LCDs

Cited by in corpus (27)

• Light fields in complex media: mesoscopic scattering meets wave control
• Superpixel-based spatial amplitude and phase modulation using a digital micromirror device
• High-fidelity multimode fibre-based endoscopy for deep-brain in vivo imaging
• Recent advances in wavefront shaping techniques for biomedical applications
• Reference-less measurement of the transmission matrix of a highly scattering material using a DMD and phase retrieval techniques
• Quantum-Secure Authentication with a Classical Key
• Waves, modes, communications and optics
• Online learning of the transfer matrix of dynamic scattering media: wavefront shaping meets multidimensional time series
• Wavefront shaping in complex media at 350 KHz with a 1D-to-2D transform
• Light scattering control in transmission and reflection with neural networks
• Polarization-resolved microscopy through scattering media via wavefront shaping
• Ultrahigh enhancement of light focusing through disordered media controlled by Megapixel modes
• Active subnanometer spectral control of a random laser
• Optimal control of light propagation through multiple-scattering media in the presence of noise
• Focusing through turbid media by polarization modulation
• An ultrafast reconfigurable nanophotonic switch using wavefront shaping of light in a nonlinear nanomaterial
• Enhanced nonlinear imaging through scattering media using transmission matrix based wavefront shaping
• Light focusing in the Anderson Regime
• High-Speed Light Focusing through Scattering Medium by Cooperatively Accelerated Genetic Algorithm
• Optical techniques for Rydberg physics in lattice geometries
• Regularization and decimation pseudolikelihood approaches to statistical inference in $XY$-spin models
• High-Fidelity and High-Speed Wavefront Shaping by Leveraging Complex Media
• Practical considerations for high-fidelity wavefront shaping experiments
• Inference for interacting linear waves in ordered and random media
• Localization-based two-photon wave-function information encoding
• Enhanced Secrecy in Optical Communication using Speckle from Multiple Scattering Layers
• Optical wavefront shaping in deep tissue using photoacoustic feedback