Results 1 to 10 of about 26,055 (247)

Terahertz structured light: nonparaxial Airy imaging using silicon diffractive optics [PDF]

open access: yesLight: Science & Applications, 2022
Demonstration of generation of terahertz structured light in a form of configurable Airy beam for imaging aims and 2D materials inspection using exclusively flat silicon diffractive optics.
Rusnė Ivaškevičiūtė-Povilauskienė   +11 more
doaj   +2 more sources

Ultra-thin light-weight laser-induced-graphene (LIG) diffractive optics [PDF]

open access: yesLight: Science & Applications, 2023
The realization of hybrid optics could be one of the best ways to fulfill the technological requirements of compact, light-weight, and multi-functional optical systems for modern industries.
Younggeun Lee   +15 more
doaj   +2 more sources

Towards Two-Photon Polymerization-Compatible Diffractive Optics for Micro-Mechanical Applications [PDF]

open access: yesMicromachines, 2023
Diffractive optics are structured optical surfaces that manipulate light based on the principles of interference and diffraction. By carefully designing the diffractive optical elements, the amplitude, phase, direction, and polarization of the ...
Victoria Paige Stinson   +3 more
doaj   +2 more sources

Photonic machine learning with on-chip diffractive optics [PDF]

open access: yesNature Communications, 2023
Integrating diffractive optical neural networks (DONN) would reduce errors due to bulky components and calibration. Here, the authors exploit integrated 1D dielectric metasurfaces to realise an on-chip DONN device with 90% classification accuracy ...
Tingzhao Fu   +8 more
doaj   +2 more sources

Polarization-sensitive diffractive optics and metasurfaces: “Past is Prologue” [PDF]

open access: yesNanophotonics
Polarization control and switchability are among the most unique features of “metasurfaces” as compared with diffractive optics technologies of the past.
Rubin Noah A., Fainman Yeshaiahu
doaj   +2 more sources

Broadband unidirectional visible imaging using wafer-scale nano-fabrication of multi-layer diffractive optical processors [PDF]

open access: yesLight: Science & Applications
We present a broadband and polarization-insensitive unidirectional imager that operates at the visible part of the spectrum, where image formation occurs in one direction, while in the opposite direction, it is blocked.
Che-Yung Shen   +8 more
doaj   +2 more sources

Color imaging using a system based on 3 diffractive lenses

open access: yesКомпьютерная оптика, 2023
The possibility of essentially reducing the weight and production cost of computer vision systems has led to the publication of a large number of research works dealing with the development of new imaging systems based on diffractive optics.
S. Stepanenko   +4 more
doaj   +1 more source

Calculation of quantum characteristics based on the classical solution of the diffraction problem in a resonator with a dielectric plate

open access: yesКомпьютерная оптика, 2022
The work is devoted to the development of the quantum theory of diffractive optical elements. Aspects of quantum optics are considered by the example of light diffraction from a dielectric plate in a resonator.
S.I. Kharitonov   +3 more
doaj   +1 more source

Analysis of the Advantages of Laser Processing of Aerospace Materials Using Diffractive Optics

open access: yesMetals, 2021
We considered possibilities of an application of diffractive free-form optics in laser processing of metallic materials in aerospace production. Based on the solution of the inverse problem of heat conduction, an algorithm was developed that calculates ...
Serguei P. Murzin   +2 more
doaj   +1 more source

The advantages of metalenses over diffractive lenses

open access: yesNature Communications, 2020
Optical elements play a crucial role in many modern systems, from cellphones to missiles. The miniaturization trend poses a challenge to optics, since classical lenses and mirrors tend to be bulky.
Jacob Engelberg, Uriel Levy
doaj   +1 more source

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