Results 41 to 50 of about 28,019 (252)

Autofocusing of optical scanning holography based on entropy minimization [PDF]

open access: yes, 2015
In optical scanning holography, extracting distance of object is an indispensable step for numerical reconstruction. In this paper, we use entropy as a measurement to achieve autofocusing under different situations.
Lam, E   +7 more
core   +1 more source

Evaluation of the realism of a full-color reflection H2 analog hologram recorded on ultra-fine-grain silver-halide material

open access: yesOpen Physics, 2019
This paper presents an evaluation of the realism of a full-color reflection H2 analog hologram recorded on ultra-fine-grain silver-halide material. An H2 hologram is a transplane image that is different from the well-known Denisyuk hologram in which the ...
Gentet Philippe   +3 more
doaj   +1 more source

Fabrication Method for Spin-Coating ITO-Competitive PEDOT:PSS onto PVDF Film

open access: yesInternational Journal of Polymer Science
This paper shows a four-order reduction of magnitude in sheet resistance for spin-coating poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) onto polyvinylidene fluoride (PVDF) film for a final sheet resistance comparable to commercially ...
Luke Johnson   +6 more
doaj   +1 more source

Ferroelectric Dynamic‐Field‐Driven Nucleation and Growth Model for Predictive Materials‐To‐Circuit Co‐Design

open access: yesAdvanced Materials, EarlyView.
This study presents a compact dynamic‐field‐driven nucleation and growth (DFNG) model that captures ferroelectric switching behavior under arbitrary voltage waveforms. It enables extraction of time‐dependent domain wall velocity and growth dimensionality, which can then be extended to device‐level modeling.
Yi Liang   +10 more
wiley   +1 more source

Holography : an interpretation from the phase-space point of view

open access: yes, 2007
The formation of holograms is interpreted as the consequence of the bilinearity of the ambiguity function. Reconstruction can then be regarded as the manipulation of the ambiguity function.
Situ, Guohai, Sheridan, John T.
core   +1 more source

Edge Extraction Based on Aperture Synthesis in Optical Scanning Holography [PDF]

open access: yes, 2015
We present an edge extraction method based on aperture synthesis with different pupils in optical scanning holography. By utilizing two sub-holograms covering different spatial frequency ranges of the object, sharp edges can be extracted successfully ...
Ou, H   +5 more
core   +1 more source

Conifold holography [PDF]

open access: yesJournal of High Energy Physics, 2003
We examine the extension of the Klebanov-Witten gauge/gravity correspondence away from the low-energy conformal limit, to a duality involving the full, asymptotically Ricci-flat background describing three-branes on the conifold. After a discussion of the nature of this duality at the string theory level (prior to taking any limits), we concentrate on ...
Amador, Xavier   +3 more
openaire   +2 more sources

Wavefront Line‐Scan Imaging Via a Single‐Pixel Detector

open access: yesAdvanced Science, EarlyView.
We propose and demonstrate a wavefront line‐scan imaging paradigm that integrates 1D spatial light modulation with single‐pixel detection. Benefiting from 1D modulation, not only is the imaging speed improved, but also the storage of modulation patterns is reduced by several orders of magnitude.
Nuo Liu   +4 more
wiley   +1 more source

Circle of holography : digital in-line holography for imaging, microscopy and measurement

open access: yes, 2006
Gabor proposed the concept of holography for wavefront reconstruction. The advent of the laser enabled Leith et al. to develop this concept into a technology with off-axis holography. Advances in computational methods and better digital recording medium,
Anand, Asundi, Singh, Vijay Raj
core   +1 more source

Resolution Enhancement of Geometric Phase Self-Interference Incoherent Digital Holography Using Synthetic Aperture

open access: yesPhotonics
Incoherent digital holography is a promising solution for acquiring three-dimensional information in the form of interference without a laser. Self-interference is the principal phenomenon of incoherent holography which splits the incident light wave ...
Youngrok Kim   +3 more
doaj   +1 more source

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