broadband achromatic imaging remains a challenge for integral imaging.Here,we realize a silicon nitride metalens array in the visible region that can be used to reconstruct 3D optical scenes in the achromatic integral imaging for white light.The metalens array contains 60脳60 polarization-insensitive ...
However, the inherent chromatic aberration of the microlens array reduces the viewing quality, and thus, broadband achromatic imaging remains a challenge for integral imaging. Here, we realize a silicon nitride metalens array in the visible region that can be used to reconstruct 3D optical scenes ...
As a result, no metalens has demonstrated full-colour imaging in the visible wavelength. Here, we show a design and fabrication that consists of GaN-based integrated-resonant unit elements to achieve an achromatic metalens operating in the entire visible region in transmission mode. The focal ...
The achromatic metalens is also capable of perform-ing white-light imaging. Finally, we design and model a metasur-face that when patterned over a commercial spherical lens renders it achromatic and diffraction-limited across the visible spectrum.Principle of achromatic metalensesAs an initial example...
Broadband achromatic metalens with high numerical aperture via hybrid all-dielectric meta-atoms in the visible region In this work, we design a broadband achromatic metalens (BAM) with high NA, which is composed of hybrid all-dielectric meta-atoms in the visible region. By simultaneously and indep...
broadband achromatic metalenses covering the entire visible spectrum. Here, we show that by judicious design of nanofins on a surface, it is possible to simultaneously control the phase, group delay and group delay dispersion of light, thereby achieving a transmissive achromatic metalens with large ...
we demonstrate a polarization-insensitive metalens using otherwise anisotropic nanofins which offer additional control over the dispersion and phase of the output light. As a result, we can render a metalens achromatic and polarization-insensitive across nearly the entire visible spectrum from wavelength ...
A broadband achromatic metalens for focusing and imaging in the visible. Nat Nanotechnol 2018;13:220–6.10.1038/s41565-017-0034-6Search in Google Scholar PubMed [187] Wang S, Wu PC, Su VC, et al. A broadband achromatic metalens in the visible. Nat Nanotechnol 2018;13:227–32.10.1038/...
astigmatism and shift have been accomplished with the MEMS-integrated metalens (Fig.5b)134. This MEMS-integrated metalens comprises a centimeter-scale dielectric elastomer metalens with five reconfigurable voltage control electrodes to resolve precise misalignment correction. Similarly, many MEMS-integrated me...
(with a 60 nm bandwidth) in a reflective metalens was achieved 24 . Other groups have experimentally demonstrated achromatic metalenses in the near infrared with bandwidths of tens of terahertz (THz) 25–27 . However, none of these works demonstrated achromatic imaging.Here, we demonstrate the ...