Results 31 to 40 of about 27,513 (349)

Comparison of Laplacian differential reconstruction of inline holograms recorded at two different wavelengths and distances

open access: yes, 2010
Paper presented at Biomedical Optics (BIOMED) Miami, Florida, April 11, 2010We record two holograms using two different illuminating wavelengths. Subtracting these holograms, the resulting reconstruction is an approximation to the second order Laplacian
Dayan Li   +5 more
core   +1 more source

Spatiotemporal hologram

open access: yesNature Communications
Spatiotemporal structured light has opened up new avenues for optics and photonics. Current spatiotemporal manipulation of light mostly relies on phase-only devices such as liquid crystal spatial light modulator to generate spatiotemporal optical fields with unique photonic properties.
Qian Cao   +3 more
openaire   +4 more sources

How the Music Machine Makes Myths Real: AI, Holograms, and Ashley Eternal

open access: yesHumanities
Since ancient times, music has been instrumental in giving life to the stories we build our identities and cultures around. I will examine how, in our time, music creates new myths by creating its own heroes and heroines through capital and the star ...
Victor Robert Kennedy
doaj   +1 more source

Comprehensive deep learning model for 3D color holography

open access: yesScientific Reports, 2022
Holography is a vital tool used in various applications from microscopy, solar energy, imaging, display to information encryption. Generation of a holographic image and reconstruction of object/hologram information from a holographic image using the ...
Alim Yolalmaz, Emre Yüce
doaj   +1 more source

Particle Size Measurement Using a Phase Retrieval Holography System with a GPU-Equipped SBC

open access: yesKONA Powder and Particle Journal, 2023
We have developed a phase retrieval holography system using a single-board computer (SBC) with a graphics processing unit (GPU) for particle size measurement.
Yohsuke Tanaka, Dai Nakai
doaj   +1 more source

The reconstruction of digital holograms on a computational grid

open access: yes, 2006
Digital holography is greatly extending the range ofholography's applications and moving it from the lab into the field: a single CCD or other solid-state sensor can capture any number of holograms while numerical reconstruction within a computer ...
Nebrensky, JJ   +3 more
core   +1 more source

Extraction of dynamic speckle activity information from digital holograms [PDF]

open access: yes, 2016
In this work we show how dynamic speckle information can be extracted directly from digital holograms. This allows improving the analysis and characterization of dynamic phenomena by combining dynamic speckle with digital holographic interferometry ...
Budini, Nicolas   +3 more
core   +1 more source

Bending in the holograms stored in hydrogel matrices [PDF]

open access: yes, 2022
The study of the optical properties and behaviour of holograms stored in hydrogel matrices when the material is immersed in liquid medium represent a very important challenge currently.
Lucío, María Isabel   +8 more
core   +1 more source

PHOTO- AND THERMODEGRADATION OF HOLOGRAMS RECORDED IN NANOCOMPOSITE [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2018
The paper considers the stability and degradation of holograms recorded in the photopolymerized nanocomposite both during storage and under external influences –heating up to the glass transition temperature of the polymer matrix and exposure to ...
E. B. Sheklanova   +2 more
doaj   +1 more source

Comparison of peristrophic multiplexing and a combination of angular and peristrophic holographic multiplexing in a thick PVA/acrylamide photopolymer for data storage

open access: yes, 2007
Two different types of multiplexing are used to store 90 holograms at the same location in a polyvinyl alcoholacrylamide photopolymer material. In the first, the 90 holograms are stored using only peristrophic multiplexing, whereas in the second a ...
Ortuño, Manuel   +5 more
core   +1 more source

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