About: Discrete calculation of the off-axis angular spectrum based light propagation     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

AttributesValues
rdf:type
Description
  • Light propagation in a free space is a common computational task in many computer generated holography algorithms. A solution based on the angular spectrum decomposition is used frequently. However, its correct off-axis numerical implementation is not straightforward. It is shown that for long distance propagation it is necessary to use digital low-pass filtering for transfer function calculation in order to restrict source area illumination to a finite area. It is also shown that for short distance propagation it is necessary to introduce frequency bands folding in transfer function calculation in order to simulate finite source area propagation. In both cases it is necessary to define properly interpolation filters that reconstruct continuous nature of the source area out of its sampled representation. It is also necessary to zero-pad properly source area sampling in order to avoid artifacts that stem from the periodic nature of the fast Fourier transform.
  • Light propagation in a free space is a common computational task in many computer generated holography algorithms. A solution based on the angular spectrum decomposition is used frequently. However, its correct off-axis numerical implementation is not straightforward. It is shown that for long distance propagation it is necessary to use digital low-pass filtering for transfer function calculation in order to restrict source area illumination to a finite area. It is also shown that for short distance propagation it is necessary to introduce frequency bands folding in transfer function calculation in order to simulate finite source area propagation. In both cases it is necessary to define properly interpolation filters that reconstruct continuous nature of the source area out of its sampled representation. It is also necessary to zero-pad properly source area sampling in order to avoid artifacts that stem from the periodic nature of the fast Fourier transform. (en)
Title
  • Discrete calculation of the off-axis angular spectrum based light propagation
  • Discrete calculation of the off-axis angular spectrum based light propagation (en)
skos:prefLabel
  • Discrete calculation of the off-axis angular spectrum based light propagation
  • Discrete calculation of the off-axis angular spectrum based light propagation (en)
skos:notation
  • RIV/49777513:23520/13:43919201!RIV14-MSM-23520___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(LH12181)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 69839
http://linked.open...ai/riv/idVysledku
  • RIV/49777513:23520/13:43919201
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • free-space light propagation; coherent light propagation; computational Fourier optics; computer generated holography (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [844AA9F130FE]
http://linked.open...i/riv/nazevZdroje
  • Journal of Physics: Conference Series
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 415
http://linked.open...iv/tvurceVysledku
  • Lobaz, Petr
http://linked.open...ain/vavai/riv/wos
  • 000317123700040
issn
  • 1742-6588
number of pages
http://bibframe.org/vocab/doi
  • 10.1088/1742-6596/415/1/012040
http://localhost/t...ganizacniJednotka
  • 23520
Faceted Search & Find service v1.16.118 as of Jun 21 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software