Results 31 to 40 of about 3,457 (218)
Orbital angular momentum 25 years on [invited] [PDF]
Twenty-five years ago Allen, Beijersbergen, Spreeuw, and Woerdman published their seminal paper establishing that light beams with helical phase-fronts carried an orbital angular momentum. Previously orbital angular momentum had been associated only with
Padgett, Miles J.
core +1 more source
A conjugate gradient minimisation approach to generating holographic traps for ultracold atoms [PDF]
Direct minimisation of a cost function can in principle provide a versatile and highly controllable route to computational hologram generation. However, to date iterative Fourier transform algorithms have been predominantly used.
Bruce, Graham D. +3 more
core +2 more sources
High speed, complex wavefront shaping using the digital micro-mirror device
Digital micro-mirror devices (DMDs) have been deployed in many optical applications. As compared to spatial light modulators (SLMs), they are characterized by their much faster refresh rates (full-frame refresh rates up to 32 kHz for binary patterns ...
Ahmed B. Ayoub, Demetri Psaltis
doaj +1 more source
Holographic Near-Eye 3D Display Method Based on Large-Size Hologram
In this paper, we propose a holographic near-eye 3D display method based on large-size computer-generated hologram (CGH). The reconstructed image with a large viewing angle is obtained by using a time multiplexing and spatial tiling system.
Su-Juan Liu +4 more
doaj +1 more source
Artifact-free holographic light shaping through moving acousto-optic holograms
Holographic light modulation is the most efficient method to shape laser light into well-defined patterns and is therefore the means of choice for many intensity demanding applications.
Dorian Treptow +3 more
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Comparison of beam generation techniques using a phase only spatial light modulator [PDF]
Whether in art or for QR codes, images have proven to be both powerful and efficient carriers of information. Spatial light modulators allow an unprecedented level of control over the generation of optical fields by using digital holograms.
Arnold, Aidan S. +4 more
core +1 more source
Optical aberrations are a type of optical defect of imaging systems that hinder femtosecond direct laser write machining by changing voxel size and aspect ratio in different sample depths. We present an approach of compensating such aberrations using a liquid crystal spatial light modulator (SLM). Two methods for correcting are explored. They are based
Gabrielius Kontenis +3 more
openaire +2 more sources
Generating polymorphic and solenoid beams with an amplitude-type spatial light modulator [PDF]
Helix-shaped polymorphic beams and solenoid ones are non-diffracting beams generated by the superposition of Bessel beams of specific orders. Their fields rotate around the beam propagation axis and have promising applications in optical forces, where ...
Maryam Setareh +3 more
doaj +1 more source
Roadmap on structured light [PDF]
Structured light refers to the generation and application of custom light fields. As the tools and technology to create and detect structured light have evolved, steadily the applications have begun to emerge.
Belmonte Molina, Aniceto +5 more
core +2 more sources
Self-accelerating polygon beams have drawn growing emphasis in optics owing to their exceptional characteristics of multiple self-accelerating channels and needle-like field distributions.
Chen Lei +6 more
doaj +1 more source

