Results 131 to 140 of about 3,702 (285)
, 2010 [[abstract]]By using the Computer Generated Hologram (CGH) technique, we designed a holographic lens with Fourier transform function, and applied this lens into the Joint Transform Correlator (JTC) system for image recognition.
胡世澤 +3 more
core
Small, EarlyView.ABSTRACT Generating pre‐designed vectorial beams via on‐chip devices can yield many fascinating applications, but traditional diffraction‐based devices are bulky and inefficient. While plasmonic metasurfaces exhibit ultra‐compact sizes and deep‐subwavelength resolutions, their working efficiencies are limited by metallic losses.
Yu He +8 more
wiley +1 more source
Contact printing of on-axis computer-generated hologram on silver halide emulsion
, 1991 The authors have shown that the phase profile of a binary image recorded on the silver halide emulsion is flat in each hologram cell despite an uneven surface-relief profile. It is therefore possible to copy high quality computer-generated holograms (CGH'
Taghizadeh, Mohammad R. +2 more
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From Particle to Purpose: A Systems‐Theoretical Model of Unity and Coherent Adaptation
Systems Research and Behavioral Science, EarlyView.ABSTRACT This paper develops a conceptual integration that bridges classical systems theories with insights from the Islamic intellectual tradition, focusing on the notion of zerre (particle) as articulated by Said Nursî. We reinterpret zerre as a systems‐theoretical agent that exhibits lawful responsiveness without autonomy, offering a new lens on how
Erhan Atay
wiley +1 more source
Study on Impurity Particle Detection in Transformer Oil Based on Microflow Imaging Method
High Voltage, EarlyView.ABSTRACT The concentration of particles in transformer oil has a significant influence on its electrical performance, making oil cleanliness a critical parameter in the operation and maintenance of power transformers. However, the light obstruction (LO) method recommended by current standards has inherent limitations, including low sensitivity to ...
Chen Chen +6 more
wiley +1 more source
Journal of Synchrotron Radiation, EarlyView.The full‐field X‐ray fluorescence imaging method, where a Fresnel zone plate is employed as a coded aperture, was tested for the first time at a beamline, and its corresponding reconstruction code was optimized. It was also employed to perform, also for the first time using full‐field and fluorescence modes, hyperspectral XANES mapping.This study ...
Gautier Landrot +14 more
wiley +1 more source
, 2002 For evaluating the surface of parabolic mirror (90 mm, F/0.76), two different null test have been discussed. After designing, encoding, and fabricating the CGH(computer generated hologram), the null CGH test was performed.
Taehee Kim, James H Burge, Yunwoo Lee
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Diffractive wavefront correction for Fe L‐edge spectroscopy on the meV scale
Journal of Synchrotron Radiation, EarlyView.We propose an aberration‐corrected, wavelength‐dispersive instrument for soft X‐ray spectroscopy at an energy‐resolving power of (5–6) × 104, designed for, for example, resonant inelastic X‐ray scattering at synchrotron beamlines or X‐ray free‐electron lasers.We propose a wavelength‐dispersive instrument for high‐resolution soft X‐ray spectroscopy at ...
Christoph Braig +3 more
wiley +1 more source
JPhys PhotonicsProgrammable optical devices provide performance enhancement and flexibility to spatial multiplexing systems enabling transmission of tributaries in high-order eigenmodes of spatially-diverse transmission media, like multimode fibre (MMF).
Stefan Rothe +3 more
doaj +1 more source