Superpixel-based spatial amplitude and phase modulation using a digital micromirror device

Abstract

We present a superpixel method for full spatial phase and amplitude control of a light beam using a digital micromirror device (DMD) combined with a spatial filter. We combine square regions of nearby micromirrors into superpixels by low pass filtering in a Fourier plane of the DMD. At each superpixel we are able to independently modulate the phase and the amplitude of light, while retaining a high resolution and the very high speed of a DMD. The method achieves a measured fidelity $F=0.98$ for a target field with fully independent phase and amplitude at a resolution of $8\times 8$ pixels per diffraction limited spot. For the LG${}_{10}$ orbital angular momentum mode the calculated fidelity is $F=0.99993$, using $768\times 768$ DMD pixels. The superpixel method reduces the errors when compared to the state of the art Lee holography method for these test fields by $50\%$ and $18\%$, with a comparable light efficiency of around $5\%$. Our control software is publicly available.

9 pages, 6 figures

References in corpus (12)

• Focusing and Compression of Ultrashort Pulses through Scattering Media
• Scattering Lens Resolves sub-100 nm Structures with Visible Light
• Rapid Generation of Light Beams Carrying Orbital Angular Momentum
• Control of light transmission through opaque scattering media in space and time
• Shaping speckles: spatio-temporal focussing of an ultrafast pulse through a multiply scattering medium
• Focusing Light through Random Photonic Media by Binary Amplitude Modulation
• Spatial amplitude and phase modulation using commercial twisted nematic LCDs
• Polarization control of multiply-scattered light through random media by wavefront shaping
• Spectral control of broadband light through random media by wavefront shaping
• Trapping and observing single atoms in the dark
• Shaping Laguerre-Gaussian laser modes with binary gratings using a Digital Micromirror Device
• Programming balanced optical beam splitters in white paint

Cited by in corpus (38)

• Light fields in complex media: mesoscopic scattering meets wave control
• High-fidelity multimode fibre-based endoscopy for deep-brain in vivo imaging
• Digital confocal microscopy through a multimode fiber
• Single multimode fiber for in vivo light-field encoded nano-imaging
• Ultra-precise holographic beam shaping for microscopic quantum control
• Controlling light propagation in multimode fibers for imaging, spectroscopy and beyond
• Seeing through multimode fibers with real-valued intensity transmission matrices
• The rotational memory effect of a multimode fiber
• Generation and characterization of an array of Airy-vortex beams
• High sampling rate single-pixel digital holography system employing a DMD and phase-encoded patterns
• A Photonic Topological Mode Bound to a Vortex
• High-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation
• Reconfigurable Flat Optics with Programmable Reflection Amplitude Using Lithography-Free Phase-Change Materials Ultra Thin Films
• Generation and characterization of complex vector modes with digital micromirror devices
• Squeezing and entanglement of density oscillations in a Bose-Einstein condensate
• Programmable multiport optical circuits in opaque scattering materials
• Confocal microscopy through a multimode fiber using optical correlation
• Optical computation of a spin glass dynamics with tunable complexity
• Reference-free polarization-sensitive quantitative phase imaging using singe-point optical phase conjugation
• Reference-Free Single-Point Holographic Imaging and Realization of an Optical Bidirectional Transducer
• Kilohertz binary phase modulator for pulsed laser sources using a digital micromirror device
• Using an acousto-optic modulator as a fast spatial light modulator
• Single-step transmission matrix retrieval for fast imaging through multi-mode fibers
• Manipulation of collective quantum states in Bose-Einstein condensates by continuous imaging
• Deep Learning Enhanced Quantum Holography with Undetected Photons
• OTSLM Toolbox for Structured Light Methods
• Dynamic high-resolution optical trapping of ultracold atoms
• Quench Dynamics of Finite Bosonic Ensembles in Optical Lattices with Spatially Modulated Interactions
• Coupling to Modes of a Near-Confocal Optical Resonator Using a Digital Light Modulator
• Optical convolutional neural network with atomic nonlinearity
• DMD-based generation of vector beams through a common-path interferometer
• Spatial coherence of light inside three dimensional media
• High-Fidelity and High-Speed Wavefront Shaping by Leveraging Complex Media
• Practical considerations for high-fidelity wavefront shaping experiments
• Spatial Optical Simulator for Classical Statistical Models
• Quantum Aberrations: Entangling Photons with Zernike Polynomials
• Optical wavefront shaping in deep tissue using photoacoustic feedback
• Single-pixel edge enhancement of object via convolutional filtering with localized vortex phase