Results 21 to 30 of about 3,894,078 (297)

Laser smoothing of binary gratings and multilevel etched structures in fused silica [PDF]

open access: yes, 2010
We describe a promising approach to the processing of micro-optical components, where CO2 laser irradiation in raster scan is used to generate localized surface melting of binary or multilevel structures on silica, fabricated by conventional reactive-ion
Wlodarczyk, Krystian Lukasz   +4 more
core   +1 more source

Thickness variation of self-processing acrylamide-based photopolymer and reflection holography [PDF]

open access: yes, 2000
There are many types of holographic recording material. The acrylamide-based recording material examined here has one significant advantage: it is self-processing.
Lawrence, Justin R.   +6 more
core   +1 more source

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

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

Multivariate Techniques for Identifying Diffractive Interactions at the LHC [PDF]

open access: yes, 2009
Close to one half of the LHC events are expected to be due to elastic or inelastic diffractive scattering. Still, predictions based on extrapolations of experimental data at lower energies differ by large factors in estimating the relative rate of ...
Lämsä, Jerry W.   +4 more
core   +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

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

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

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

Design of infrared diffractive telescope imaging optical systems

open access: yes, 2015
Diffractive telescope is an updated imaging technology, it differs from conventional refractive and reflective imaging system, which is based on the principle of diffraction image. It has great potential for developing the larger aperture and lightweight
Kang, Fuzeng   +11 more
core   +1 more source

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