Results 11 to 20 of about 233 (127)

Axially multifocal metalens for 3D volumetric photoacoustic imaging of neuromelanin in live brain organoid. [PDF]

open access: yesSci Adv
Optical resolution photoacoustic imaging of uneven samples without z-scanning is transformative for the fast analysis and diagnosis of diseases. However, current approaches to elongate the depth of field (DOF) typically imply cumbersome postprocessing procedures, bulky optical element ensembles, or substantial excitation beam side lobes.
Barulin A   +17 more
europepmc   +5 more sources

Trapping and manipulation of nanoparticles using multifocal optical vortex metalens. [PDF]

open access: yesSci Rep, 2017
AbstractOptical trapping and manipulation have emerged as a powerful tool in the biological and physical sciences. In this work, we present a miniature optical tweezers device based on multifocal optical vortex metalens (MOVM). The MOVM is capable of generating multiple focal fields with specific orbital angular momentum at arbitrary position.
Ma Y, Rui G, Gu B, Cui Y.
europepmc   +6 more sources

Multiplexed terahertz multifocal metalens based on stretchable single-, dual-, and quad-axis synthetic rectangular optical sparse aperture

open access: yesMaterials & Design
As ultrathin optical elements with subwavelength structures densely arranged, planar lens or called metalens can effectively focus incident wave. Due to the compact design and wide operating frequency of metalens, it becomes promising in applications ...
Yuxin Liu, Yu-Sheng Lin
doaj   +4 more sources

Depth of focus extension in optical coherence tomography using ultrahigh chromatic dispersion of zinc selenide [PDF]

open access: yesJournal of Biophotonics, Volume 15, Issue 8, August 2022., 2022
We report a novel technique to overcome the depth-of-focus limitation in optical coherence tomography (OCT) using chromatic dispersion of zinc selenide lens.
Romodina, M., Singh, K.
core   +4 more sources

Polarization filtering with isomaterial multifocal metalenses at ultraviolet frequencies [PDF]

open access: yesScientific Reports
The growing demand for complex nanophotonic devices that operate in the ultraviolet (UV) range necessitates the development of innovative compatible optical devices, particularly for use in lithography applications.
Ramin Yazdaanpanah   +3 more
doaj   +2 more sources

Design and research of dual-wavelength polarization multiplexing multifocal metalens based on superimposed nano-antenna array

open access: yesMaterials Research Express, 2021
In this study, based on the single-layer metasurface structure, a dual-wavelength polarization multiplexing metalens is designed at the communication wavelengths of 1310 nm and 1550 nm, respectively.
Shuyuan Lv   +3 more
doaj   +2 more sources

Publisher Correction: Trapping and manipulation of nanoparticles using multifocal optical vortex metalens. [PDF]

open access: yesSci Rep, 2018
A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.
Ma Y, Rui G, Gu B, Cui Y.
europepmc   +4 more sources

Editorial on special issue "The 11th International Conference on Surface Plasmon Photonics (SPP11)". [PDF]

open access: yesNanophotonics
Nanophotonics, Volume 14, Issue 25, Page 4459-4462, December 2025.
Tanaka T, Kubo W.
europepmc   +2 more sources

Generation of high-uniformity and high-resolution Bessel beam arrays through all-dielectric metasurfaces. [PDF]

open access: yesNanophotonics, 2022
Abstract Bessel beam arrays are progressively attracting attention in recent years due to their remarkable non‐diffracting nature and parallel manipulation capabilities in diverse applications. However, the poor phase discretization of conventional approaches such as spatial light modulators leads to low numerical aperture (NA) beam arrays due to the ...
Chen L   +6 more
europepmc   +2 more sources

Application of metasurface in future displays. [PDF]

open access: yesNanophotonics
Abstract Optical metasurfaces, as a booming research field, have provided new methods for modulating the amplitude, phase, and polarization of light through artificial birefringent structures or structural resonances. It has been used to design planar optical components such as ultra‐thin lenses, ultra‐wideband achromatic lenses, and orbital angular ...
Ai L, Gan Z, Vannahme C, Zhu X.
europepmc   +2 more sources

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