File:Formation of the Arago spot.webm

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Original file ‎(WebM audio/video file, VP9, length 24 s, 850 × 720 pixels, 17.81 Mbps overall, file size: 51.05 MB)

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Description
English: Simulation showing the formation of the Arago spot in the pulse scalar wave (Dirichlet boundary condition). The radius of the obstacle equals 25 central wavelengths of the pulse.

The scale is linear with respect to the energy (square of the absolute value of the amplitude).

The simulation is done by placing 150 families of Green function sources across the obstacle (i-th family along the circle of radius R(i-1)/150). The amplitudes are chosen from fitting the condition "field near the obstacle = 0".
Date
Source Own work
Author L3erdnik
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  • Static chart

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I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

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Date/TimeThumbnailDimensionsUserComment
current00:43, 1 May 201824 s, 850 × 720 (51.05 MB)L3erdnik (talk | contribs)A bit brighter version with gamma set to 2.2 instead of 2 to be closer to sRGB gamma.
06:07, 16 April 201824 s, 850 × 720 (47.51 MB)L3erdnik (talk | contribs)User created page with UploadWizard

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Format Bitrate Download Status Encode time
VP9 720P 70 kbps Completed 02:21, 27 August 2018 31 s
Streaming 720p (VP9) 70 kbps Completed 03:25, 24 March 2024 0.0 s
VP9 480P 41 kbps Completed 02:21, 27 August 2018 18 s
Streaming 480p (VP9) 41 kbps Completed 14:05, 7 February 2024 0.0 s
VP9 360P 28 kbps Completed 02:21, 27 August 2018 14 s
Streaming 360p (VP9) 28 kbps Completed 03:59, 18 March 2024 1.0 s
VP9 240P 19 kbps Completed 02:21, 27 August 2018 10 s
Streaming 240p (VP9) 19 kbps Completed 16:43, 21 December 2023 0.0 s
WebM 360P 88 kbps Completed 00:43, 1 May 2018 8.0 s
Streaming 144p (MJPEG) 366 kbps Completed 15:33, 12 November 2023 3.0 s

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