Results 1 to 10 of about 1,715 (156)

Polarization-controlled nonlinear computer-generated holography [PDF]

open access: yesScientific Reports, 2023
Dynamic phase-only beam shaping with a liquid crystal spatial light modulator is a powerful technique for tailoring the intensity profile or wave front of a beam.
Lisa Ackermann   +5 more
doaj   +6 more sources

Computer generated holography with intensity-graded patterns [PDF]

open access: yesFrontiers in Cellular Neuroscience, 2016
Computer Generated Holography achieves patterned illumination at the sample plane through phase modulation of the laser beam at the objective back aperture. This is obtained by using liquid crystal-based spatial light modulators (LC-SLMs), which modulate
Rossella Conti   +4 more
doaj   +5 more sources

On the use of deep learning for computer-generated holography [PDF]

open access: yesiScience
Summary: The research disciplines of computer-generated holography (CGH) and machine learning have evolved in parallel for decades and experienced booming growth due to breakthroughs in mathematical optimization and computing hardware.
Xuan Yu   +10 more
doaj   +2 more sources

Quantum Computer-Generated Holography

open access: yesIEEE Access
Hologram calculations pose a significant challenge for future holographic displays with extensive fields of view and wide viewing angles. Classical computers may encounter difficulties with these owing to immense computational demands.
Tomoyoshi Shimobaba   +2 more
doaj   +3 more sources

Non-convex optimization for inverse problem solving in computer-generated holography [PDF]

open access: yesLight: Science & Applications
Computer-generated holography is a promising technique that modulates user-defined wavefronts with digital holograms. Computing appropriate holograms with faithful reconstructions is not only a problem closely related to the fundamental basis of ...
Xiaomeng Sui   +3 more
doaj   +2 more sources

Bandwidth Control in Computer- Generated Holography

open access: yesIEEE Photonics Journal, 2023
The Fourier transform between the time and frequency signals of light enables highly efficient band usage in optical communications. Analogously, the Fourier transform between the wavefield and wavevector distributions in the optical spatial diffraction ...
Mian Wu   +6 more
doaj   +2 more sources

Propagation-adaptive 4K computer-generated holography using physics-constrained spatial and Fourier neural operator [PDF]

open access: yesNature Communications
Computer-generated holography (CGH) offers a promising method to create true-to-life reconstructions of objects. While recent advances in deep learning-based CGH algorithms have significantly improved the tradeoff between algorithm runtime and image ...
Ninghe Liu   +4 more
doaj   +2 more sources

Spin and wavelength multiplexed nonlinear metasurface holography

open access: yesNature Communications, 2016
Metasurfaces offer an approach for computer generated holograms with good efficiency and ease of fabrication. Here, Ye et al.report on spin and wavelength multiplexed nonlinear metasurface holography, showing construction of holographic images using ...
Franziska Zeuner, Shan He, Juan Liu
exaly   +2 more sources

Holo-U2Net for High-Fidelity 3D Hologram Generation [PDF]

open access: yesSensors
Traditional methods of hologram generation, such as point-, polygon-, and layer-based physical simulation approaches, suffer from substantial computational overhead and generate low-fidelity holograms.
Tian Yang, Zixiang Lu
doaj   +2 more sources

Multi frame holograms batched optimization for binary phase spatial light modulators [PDF]

open access: yesScientific Reports
Phase retrieval methods used in computer generated holograms such as Gerchberg-Saxton and gradient descent give results which are prone to noise and other defects.
Jinze Sha   +4 more
doaj   +2 more sources

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