Results 21 to 30 of about 2,535 (259)

Achromatic diffractive liquid-crystal optics for virtual reality displays

open access: yesLight: Science & Applications, 2023
Diffractive liquid-crystal optics is a promising optical element for virtual reality (VR) and mixed reality as it provides an ultrathin formfactor and lightweight for human factors and ergonomics.
Zhenyi Luo   +4 more
doaj   +1 more source

The investigation of the features of focusing vortex super-Gaussian beams with a variable-height diffractive axicon

open access: yesКомпьютерная оптика, 2021
Spatial intensity distributions of the Laguerre-superGauss modes (1,0) as well as a super-Gaussian beam with radial and circular polarization were investigated versus changes in the height of a diffractive axicon.
D.A. Savelyev
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

Cascaded diffractive optical element for high-fidelity optical information encryption [PDF]

open access: yesEPJ Web of Conferences
Cascaded diffractive optical element (DOE), consisting of multiple DOE layers, is a type of multi-layer architecture that introduces additional design freedom, e.g.
Li Yanqiu   +3 more
doaj   +1 more source

Design, fabrication and investigation of a silicon subwavelength terahertz axicon [PDF]

open access: yesКомпьютерная оптика, 2019
A silicon subwavelengh terahertz axicon has been designed, fabricated, and investigated by methods of numerical and optical experiments. The research has been performed on a free-electron laser workstation NOVOFEL (Budker Institute of Nuclear Physics of ...
Svetlana Khonina   +6 more
doaj   +1 more source

Spectral resolution of optical filters based on diffractive optical elements with non-uniform illumination [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2008
We study the transmission coefficient and the spectral resolution of optical filters based on a diffractive optical element (DOE), with a collimating lens, input and output fibers.
Angelskår Hallvard, Sudbø Aasmund S.
doaj   +1 more source

Nonlinear Diffractive Optical Elements

open access: yesOptics Express, 2007
We propose diffractive optical elements with a spatially-varying nonlinear refractive index. Such a component acts as a diffractive optical element whose properties depend on the intensity of the incoming beam. We present a method for designing such elements, and as specific examples we study three types of nonlinear diffractive optical elements ...
Ofer, Manela, Mordechai, Segev
openaire   +2 more sources

Theoretical principle and design of high-imaging-quality refractive-diffractive optical elements by multifocal-simultaneous aberration-correction method

open access: yesResults in Physics
Multifocal refractive-diffractive optical elements, which produce arbitrary light distribution, are widely used in lightweight and compact optical systems.
Bo Dong, Ying Yang, Changxi Xue
doaj   +1 more source

Off-Axis Polarization Volume Lens for Diffractive Waveguide

open access: yesCrystals, 2023
In augmented reality diffractive waveguide technology, the light field needs to be collimated before being transmitted into the diffractive waveguide.
Lixuan Zhang   +6 more
doaj   +1 more source

Aberration Theoretical Principle of Broadband Multilayer Refractive–Diffractive Optical Elements by Polychromatic Integral Aberration Method

open access: yesPhotonics
Multilayer diffractive optical elements (MLDOEs), which have broadband imaging performance, are widely used in lightweight and compact optical systems on the surface of the refractive lenses forming refractive–diffractive lenses.
Ying Yang   +6 more
doaj   +1 more source

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