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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Learning Wavefront Coding for Extended Depth of Field Imaging [PDF]
IEEE Transactions on Image Processing, 2020 Depth of field is an important factor of imaging systems that highly affects the quality of the acquired spatial information. Extended depth of field (EDoF) imaging is a challenging ill-posed problem and has been extensively addressed in the literature ...
Akpinar, Ugur +4 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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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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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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Possible Application of Wavefront Coding to the LSST [PDF]
, 2006 Wavefront Coding has been applied as a means to increase the effective depth of focus of optical systems. In this note I discuss the potential for this technique to increase the depth of focus of the LSST and the resulting advantages for the construction
/SLAC, Langeveld, Willy
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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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Reprogrammable reflection-transmission integrated coding metasurface for real-time terahertz wavefront manipulations in full-space [PDF]
Scientific ReportsIn recent years, there has been notable advancement in programmable metasurfaces, primarily attributed to their cost-effectiveness and capacity to manipulate electromagnetic (EM) waves.
Parsa Farzin +2 more
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Jacobi–Fourier phase mask for wavefront coding
Optics and Lasers in Engineering, 2020 In this work we propose Jacobi–Fourier phase masks for wavefront coding-based imaging systems. The optical properties of the phase mask is study in detail and numerical simulation are shown. Pixel size and noise are taken into account for the deconvolution of images.
E. González-Amador +4 more
openaire +4 more sources
Photonic terahertz phased array via selective excitation of nonlinear Pancharatnam-Berry elements [PDF]
Nature CommunicationsPhased arrays are crucial in various technologies, such as radar and wireless communications, due to their ability to precisely control and steer electromagnetic waves.
Li Niu +13 more
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