Results 31 to 40 of about 705,634 (314)
Pixel size limit in holographic memories [PDF]
, 1999 The bandwidth of holographic recording in LiNbO3 (Fe doped) in the 90° geometry is studied theoretically and experimentally. The wide holographic bandwidth of LiNbO3 makes it possible to record submicrometer pixels and reconstruct them by phase ...
Liu, Wenhai, Psaltis, Demetri
core +2 more sources
Optics Express, 2020 We present a full-color holographic augmented reality near-eye display using a Pancharatnam-Berry phase lens (PBP lens) and its aberration correction method.
Seung‐Woo Nam +6 more
openalex +2 more sources
Chiral liquid crystal based holographic reflective lens for spectral detection.
Optics Express, 2022 Flat optics based on chiral liquid crystal (CLC) can be achieved using holographic polarization recording with the help of a photoalignment technique to vary the orientation of the optical axis in a thin CLC layer.
Migle Stebryte +3 more
semanticscholar +1 more source
Volume Holographic Optical Elements as Solar Concentrators: An Overview
Applied Sciences, 2019 Generally, to reduce the area of a photovoltaic cell, which is typically very expensive, solar concentrators based on a set of mirrors or mechanical structures are used.
Maria Antonietta Ferrara +2 more
doaj +1 more source
A Virtual Optical Holographic Encryption System Using Expanded Diffie-Hellman Algorithm
IEEE Access, 2021 This paper presents a new method for encrypting information over a Virtual Optical Holographic Encryption (VOHE) system which employs a virtual optical system based on digital holography and Fourier lens.
Yang Peng +4 more
doaj +1 more source
Direct transmission of pictorial information in multimode optical fibers [PDF]
, 1976 The problem of coherent image transmission through a single multimode optical fiber is discussed. A scheme is presented for recovering the transmitted image after distortions brought about by the fiber modes dispersion.
Gover, A., Lee, C. P., Yariv, A.
core +1 more source
International Journal of Polymer Science, 2014 A holographic device characterised by a large angular range of operation is under development. The aim of this study is to increase the angular working range of the diffractive lens by stacking three layers of high efficiency optical elements on top of ...
Hoda Akbari +5 more
doaj +1 more source
Locking and wavelength selection of an ultra-collimated single-mode diode laser bar by a volume holographic grating [PDF]
, 2013 Wavelength-locking by a volume holographic grating (VHG) is reported for a diode laser bar with 49 single mode emitters, fitted with a dual-axis collimation phase-plate for smile elimination and excellent beam pointing correction.
Baker, Howard John +2 more
core +1 more source
Lens Free Holographic Imaging for Urinary Tract Infection Screening
IEEE Transactions on Biomedical Engineering, 2023 Urinary tract infections (UTIs) are a common condition that can lead to serious complications including kidney injury, altered mental status, sepsis, and death. Laboratory tests such as urinalysis and urine culture are the mainstays of UTI diagnosis, whereby a urine specimen is collected and processed to reveal its cellular and chemical composition ...
Gregory N. McKay +7 more
openaire +3 more sources
Chern-Simons invariants from ensemble averages
Journal of High Energy Physics, 2021 We discuss ensemble averages of two-dimensional conformal field theories associated with an arbitrary indefinite lattice with integral quadratic form Q.
Meer Ashwinkumar +4 more
doaj +1 more source