Results 31 to 40 of about 122,050 (289)

Holographic Resonant Laser Printing of metasurfaces using plasmonic template [PDF]

open access: yes, 2018
Laser printing with a spatial light modulator (SLM) has several advantages over conventional raster-writing and dot-matrix display (DMD) writing: multiple pixel exposure, high power endurance and existing software for computer generated holograms (CGH ...
Carstensen, Marcus S.   +5 more
core   +3 more sources

Optical schemes of spectrographs with a diffractive optical element in a converging beam [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2015
Optical schemes of spectrographs based on transmission concave holographic gratings working in converging beams are considered. General description of the design techniques are provided. Each of them is supported by a certain example with calculation and
Muslimov E. R., Pavlycheva N. K.
doaj   +1 more source

Modelling and Design of Holographic Optical Elements for Beam-Coupling Applications for a Range of Incident Beam Angles

open access: yesPhotonics, 2022
Theoretical modelling has been used to calculate the holographic recording beam angles required in air (at any recording wavelength) to produce a Volume Holographic Optical Element (VHOE) for any defined input and output beam angles. The approach is used
Dipanjan Chakraborty   +6 more
doaj   +1 more source

An Augmented Reality Head-Up Display System with a Wide-View Eyebox

open access: yesInternational Journal of Optics, 2020
This study proposes to apply the combination of two 90-degree prisms and a holographic optical element to an image-dividing element, divide an image into three through the virtual image projection system, and accurately project the images to 160 cm ...
Pei-Jung Wu   +4 more
doaj   +1 more source

Geometric-phase-based shearing interferometry for broadband vortex state decoding

open access: yesScientific Reports, 2022
Given that spin and orbital angular momenta of photons have been widely investigated in optical communication and information processing systems, efficient decoding of optical vortex states using a single element is highly anticipated.
Ziyao Lyu, Changshun Wang
doaj   +1 more source

Crosstalk Reduction in Voxels for a See-Through Holographic Waveguide by Using Integral Imaging with Compensated Elemental Images

open access: yesPhotonics, 2021
The representation of three-dimensional volumetric pixels, voxels, is an important issue for the near-to-eye displays (NEDs) to solve the vergence-accommodation conflict problem. Although the holographic waveguides using holographic optical element (HOE)
Jiwoon Yeom, Yeseul Son, Kwangsoon Choi
doaj   +1 more source

Multifacet holographic optical elements [PDF]

open access: yesICALEO '83: Proceedings of the Information Processing and Holography Symposium, 1983
Holographic optical elements are an attractive alternative to conventional optical elements in systems using light with a narrow spectral bandwidth. The attributes of holographic optical elements include the capability of producing low f/number diffraction limited optics, and the ability to generate arbitrary wavefronts.
S. K. Case   +3 more
openaire   +1 more source

Orbital Angular Momentum generation in infrared with Holographic Optical Elements [PDF]

open access: yesEPJ Web of Conferences
Optical vortices are of interest in the infrared range for applications in the fields of optical fiber communications and femtosecond laser pulses. Among the current techniques used to generate optical vortices, the use of a Spatial Light Modulator (SLM)
Marín-Sáez Julia   +4 more
doaj   +1 more source

Computer-Generated Holographic Optical Tweezer Arrays

open access: yes, 2000
Holographic techniques significantly extend the capabilities of laser tweezing, making possible extended trapping patterns for manipulating large numbers of particles and volumes of soft matter.
Dearing, Matthew T.   +4 more
core   +1 more source

POLICRYPS-based electrically switchable Bragg reflector [PDF]

open access: yes, 2015
The formation and characterization of a switchable volume reflective element fabricated from a polymer liquid crystal (LC) polymer slice (POLICRYPS) structure by holographic photopolymerization at high temperature (65 °C) using a photosensitive/nematic ...
Bunning, Timothy J.   +2 more
core   +1 more source

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