In comparison with the existing right-angle Airy array beam, the image transmission by the proposed CAAB is less sensitive to the position of the obstacles on the beam path. & COPY; 2023 Optica Publishing GroupZhou, Y., IChangzhou Res Inst Co LtdApplied optics...
Optical image processing is a technology that uses optical means and devices to complete analog computing processing and transmission of image information. To objectively measure the imaging quality of the system by characterizing the optical transfer function, spectrum analysis and filtering is an ...
The result in (48) shows that the “blurred Trajectories” might be achieved by a micro lenses array (example of FIG. 11B above) which includes a field stop, where each “Trajectory” shift is realized by a bending prism, and the weight factor (44) by local transmission. Also, as indic...
a decoding method is proposed by using a binarized phase map derived from an autofocusing Airy beam. By adjusting the parameters of the phase map, the position and intensity distribution of the reconstructed image become flexibly adjustable. In addition, the cross-talk between different image channel...
Subsequently, the CMOS camera captures the experimentally decrypted images, which are obtained through a 20× objective used to collect the metalens-focused light beam. Figure 3. (a) Schematic for the setup of the image decryption by the metalens; the cross-sectional intensity distribution using ...