Optical Aberration Calibration and Correction of Photographic System Based on Wavefront Coding [PDF]
Sensors, 2021 The image deconvolution technique can recover potential sharp images from blurred images affected by aberrations. Obtaining the point spread function (PSF) of the imaging system accurately is a prerequisite for robust deconvolution.
Chuanwei Yao, Yibing Shen
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Extended Depth-of-Field of a Miniature Optical Endoscope Using Wavefront Coding
Applied Sciences, 2020 Endoscopic imaging is an indispensable tool for visual inspection of surfaces in hard-to-access places. The conventional optical endoscope only enables imaging the regions that lie close to the focal plane, and therefore improving the depth of field (DOF)
Lei Yang +6 more
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Multichannel full-space coding metasurface with linearly-circularly-polarized wavefront manipulation [PDF]
NanophotonicsAchieving independent multitasked wavefront control by using an ultrathin plate is a challenge to increase information capacity in integration optics and radar applications.
Luo Huiling +8 more
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Reconfigurable acoustic coding metasurface for bidirectional wavefront manipulation across the water-air interface [PDF]
Fundamental ResearchBidirectional high-efficiency sound control across the water-air interface is essential for cross-medium communication and remote sensing. However, conventional quarter-wavelength impedance matching imposes a strong trade-off between transmission ...
Yan-Long Du +5 more
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A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System
Crystals, 2021 A novel anti-cat-eye effect imaging technique based on wavefront coding is proposed as a solution to the problem of previous anti-cat-eye effect imaging techniques where imaging quality was sacrificed to reduce the retroreflection from the photoelectric ...
Qing Ye +5 more
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Wavefront Control of 2D Curved Coding Metasurfaces Based on Extended Array Theory
IEEE Access, 2019 We extend the array theory to design 2D curved coding metasurfaces in order to achieve arbitrary wavefront control. The extended array theory establishes the relationship between wavefront and curved-surface, which provides a simple and effective method ...
Yang Zhou +8 more
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Areconfigurable coding acoustic metasurface for multifunctional beam manipulation [PDF]
Scientific ReportsThe advent of reconfigurable metasurfaces incorporating active elements offers the flexibility of engineering acoustic waves with external behaviors, but it still remains challenging to reduce the complexity of design while ensuring a subwavelength ...
Hu Jie +4 more
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Improved Exponential Phase Mask for Generating Defocus Invariance of Wavefront Coding Systems
Applied Sciences, 2022 Wavefront coding is an effective way to extend the depth of field of optical imaging systems. The invariant defocusing imaging feature can be obtained by adding a phase mask with a suitable form to the aperture of a typical optical system.
Jing Sheng +4 more
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Subarray programmable terahertz metasurface for optical logic and high-order amplitude modulation [PDF]
Light: Science & ApplicationsIntegrated terahertz (THz) communication-sensing-computing systems require reconfigurable platforms that can simultaneously support logic operations and signal modulation.
Lan Wang +10 more
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Space-time acoustic coding metasurfaces with scattering reduction characteristics [PDF]
iScienceSummary: In recent years, constructing space-time joint modulation acoustic metasurfaces with harmonic manipulation capabilities to achieve excellent scattering reduction within three-dimensional (3D) space has remained a significant challenge.
Sheng He +5 more
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