Results 41 to 50 of about 29,331 (339)

A Multi-Plane Augmented Reality Head-Up Display System Based on Volume Holographic Optical Elements With Large Area

open access: yesIEEE Photonics Journal, 2021
The traditional head-up display (HUD) system has the disadvantages of a small area and a single display plane, here we propose and design an augmented reality (AR) HUD system with multi-plane, large area, high diffraction efficiency and a single picture ...
Zhenlv Lv, Juan Liu, Liangfa Xu
doaj   +1 more source

Very High Resolution Solar X-ray Imaging Using Diffractive Optics

open access: yes, 2012
This paper describes the development of X-ray diffractive optics for imaging solar flares with better than 0.1 arcsec angular resolution. X-ray images with this resolution of the \geq10 MK plasma in solar active regions and solar flares would allow the ...
A. Y. Shih   +24 more
core   +1 more source

Multiwavelength polarization insensitive lenses based on dielectric metasurfaces with meta-molecules [PDF]

open access: yes, 2016
Metasurfaces are nano-structured devices composed of arrays of subwavelength scatterers (or meta-atoms) that manipulate the wavefront, polarization, or intensity of light.
Arbabi, Amir   +4 more
core   +3 more sources

Hybrid Space Calibrated 3D Network of Diffractive Hyperspectral Optical Imaging Sensor

open access: yesSensors
Diffractive multispectral optical imaging plays an essential role in optical sensing, which typically suffers from the image blurring problem caused by the spatially variant point spread function.
Hao Fan   +7 more
doaj   +1 more source

Takagi-Taupin Description of X-ray Dynamical Diffraction from Diffractive Optics with Large Numerical Aperture

open access: yes, 2007
We present a formalism of x-ray dynamical diffraction from volume diffractive optics with large numerical aperture and high aspect ratio, in an analogy to the Takagi-Taupin equations for strained single crystals.
A. Authier   +15 more
core   +1 more source

Diffracting Digital Images

open access: yes, 2021
Digital imaging techniques have been rapidly adopted within archaeology and cultural heritage practice for the accurate documentation of cultural artefacts. But what is a digital image, and how does it relate to digital photography? The authors of this book take a critical look at the practice and techniques of digital imaging from the stance of ...
Minkin, Louisa   +3 more
openaire   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +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

All-optical synthesis of an arbitrary linear transformation using diffractive surfaces

open access: yesLight: Science & Applications, 2021
Spatially-engineered diffractive surfaces have emerged as a powerful framework to control light-matter interactions for statistical inference and the design of task-specific optical components.
Onur Kulce   +3 more
doaj   +1 more source

All-optical atom surface traps implemented with one-dimensional planar diffractive microstructures [PDF]

open access: yes, 2006
We characterize the loading, containment and optical properties of all-optical atom traps implemented by diffractive focusing with one-dimensional (1D) microstructures milled on gold films.
H. J. Lezec   +3 more
core   +2 more sources

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