Results 21 to 30 of about 7,097 (301)

Multi-wavelength optical pickup with diffractive optical elements

open access: yes, 2022
S.2437-2453A novel, to our knowledge, multi-wavelength diffractive optical pickup is presented. The pickup enables multi-focus imaging and increases the data transfer rate considerably. Parallel reading of two or more memory layers is possible.
Pawlowski, E.   +5 more
core   +1 more source

3D printable diffractive optical elements by liquid immersion

open access: yesNature Communications, 2021
Diffractive optical elements are broadly used due to their ability to reshape the wavefront efficiently and conveniently. By using liquid immersion, the authors here enable microscale 3D-printed optics to behave like nanoscopic structures while ...
Reut Orange-Kedem   +6 more
doaj   +1 more source

End-to-End Optimization of an Achromatic Diffractive Optical Element Array for Integral Imaging Three-Dimensional Display

open access: yesIEEE Photonics Journal, 2022
Diffractive optical element (DOE) array promises compact shape for full-parallax integral imaging three-dimensional (3D) display. However, DOEs suffer from large chromatic aberration due to the strong wavelength-dependent nature of diffraction phenomena ...
Yuedi Wang   +7 more
doaj   +1 more source

Metamaterials for light rays: ray optics without wave-optical analog in the ray-optics limit [PDF]

open access: yes, 2009
Volumes of sub-wavelength electromagnetic elements can act like homogeneous materials: metamaterials. In analogy, sheets of optical elements such as prisms can act ray-optically like homogeneous sheet materials.
Hamilton, A.C., Courtial, J.
core   +1 more source

GDOESII: Software for design of diffractive optical elements and phase mask conversion to GDSII lithography files

open access: yesSoftwareX, 2019
We develop an open source software “GDoeSII” for the simulation of Fresnel (near field) and Fraunhofer (far field) diffraction integrals of diffractive optical elements (DOE).
Raghu Dharmavarapu   +2 more
doaj   +1 more source

Transferability of Diffractive Structure in the Compression Molding of Chalcogenide Glass

open access: yesMicromachines, 2023
This study investigates the use of Ge28Sb12Se60 chalcogenide glass for the compression molding of an infrared optical lens with a diffractive structure.
Byeong-Rea Son   +3 more
doaj   +1 more source

Metaoptics for the spin-controlled generation of orbital angular momentum vector beams [PDF]

open access: yesEPJ Web of Conferences, 2023
Moving from diffractive optics to metalenses, novel tools for structuring light are provided for the integration in compact optical layouts. Here we propose new metaoptics designed for light shaping into structured beams implementing on-demand vectorial ...
Vogliardi Andrea   +4 more
doaj   +1 more source

Towards Functional Miniaturized Lasers [PDF]

open access: yes, 2007
In this thesis, nanometer scale semiconductor lasers and micrometer scale polymer based dye lasers are our focus in bringing the miniaturized lasers to applications in data transmission; ultra-small chemical / biological sensors; and ultra-compact ...
Zhang, Zhaoyu
core   +1 more source

Diffractive Optics And Micro-Optics: Introduction

open access: yes, 1997
This issue of Applied Optics features 19 articles related to the fabrication and the design of diffractive and micro-optics as well as their applications.
Moharam, M. G., Jahns, J., Cox, J. A.
core   +2 more sources

Alternative Design of Binary Phase Diffractive Optical Element with Non-π Phase Difference

open access: yesApplied Sciences, 2021
It was found that binary phase diffractive optical element (DOE) with non-π phase difference had higher diffraction efficiency and adjustable zero-order intensity than a 0-π one.
Cheng Xu   +3 more
doaj   +1 more source

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