Results 21 to 30 of about 1,825 (184)
Bandwidth Control in Computer- Generated Holography
IEEE 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
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Propagation-adaptive 4K computer-generated holography using physics-constrained spatial and Fourier neural operator [PDF]
Nature CommunicationsComputer-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
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Complementary computer generated holography for aesthetic watermarking
Optics Express, 2012 We present herein an original solution for the watermarking of holograms in binary graphic arts without unaesthetic diffractive effect. It is based on the Babinet principle of complementary diffractive structures adapted to Lohmann-type computer generated holograms.
Christophe, Martinez +5 more
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Multifocal co-plane metalens based on computer-generated holography for multiple visible wavelengths
Results in Physics, 2020 Traditional optical components need to accumulate optical path to control the wavefront. To achieve a desired function, several components are cascaded resulting in optical systems that are bulky and costly.
Biqiao Huang +6 more
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Synthesizing optical spectra using computer-generated holography techniques
New Journal of Physics, 2021 Experimental control and detection of atoms and molecules often rely on optical transitions between different electronic states. In many cases, substructure such as hyperfine or spin-rotation structure leads to the need for multiple optical frequencies ...
Connor M Holland +2 more
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Holographic Tailoring of Structured Light Field with Digital Device
Photonics, 2022 Structured light fields have attracted much attention due to rich spatial degrees of freedom. The tailoring of an arbitrary structured light field on demand is the precondition for the application of structured light.
Zhensong Wan +3 more
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Computer-Generated Hologram Based on Reference Light Multiplexing for Holographic Display
Applied Sciences, 2021 In this article, we propose a reference light wave multiplexing scheme to increase the information capacity of computer-generated holograms. The holograms were generated by different reference light waves and superimposed together as a multiplexed ...
Dapu Pi, Juan Liu
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Simultaneous Color Computer Generated Holography
SIGGRAPH Asia 2023 Conference Papers, 2023 Computer generated holography has long been touted as the future of augmented and virtual reality (AR/VR) displays, but has yet to be realized in practice. Previous high-quality, color holographic displays have made either a 3$\times$ sacrifice on frame rate by using a sequential color illumination scheme or used more than one spatial light modulator ...
Eric Markley +4 more
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Computer-generated holography in the intermediate domain
Journal of the Optical Society of America A, 2022 Iterative Fourier transform algorithms are widely used for hologram generation for phase-modulating spatial light modulators. In this paper, we introduce a new technique called the “intermediate domain,” which decomposes the Fourier transforms used into multiple subtransforms, the combination of which can offer major performance
Peter J. Christopher +4 more
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IEEE Access, 2021 We demonstrate an interactive holographic display system for real-time drawing and erasing of 3D point-cloud images. This system detects the position of the observer's fingertip with a motion sensor, which it uses to calculate the complex amplitude ...
Mikito Takenaka +3 more
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