File:DESI's volume phase holographic grating (grating CC).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(2,039 × 1,200 pixels, file size: 376 KB, MIME type: image/jpeg)

Captions

Captions

Before the light lands on DESI's detectors, it is spread using a volume phase holographic (VPH) grating. The detector arrays have 4096×4096 15μm pixels and are each housed in their own cryostat so that can be kept very cold to maintain stability.

Summary

[edit]
Description
English: Before the light lands on DESI's detectors, it is spread using a volume phase holographic (VPH) grating. The detector arrays have 4096×4096 15μm pixels and are each housed in their own cryostat so that can be kept very cold to maintain stability.
Date 26 November 2020, 09:48 (upload date)
Source DESI's volume phase holographic grating
Author Lawrence Berkeley National Lab/KPNO/NOIRLab/NSF/AURA
Other versions
  • TIFF version
    TIFF version

Licensing

[edit]
This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week and captions; are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible."
To the uploader: You must provide a link (URL) to the original file and the authorship information if available.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 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.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current08:52, 13 July 2023Thumbnail for version as of 08:52, 13 July 20232,039 × 1,200 (376 KB)OptimusPrimeBot (talk | contribs)#Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/grating_CC.jpg via Commons:Spacemedia

You cannot overwrite this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:DESI%27s_volume_phase_holographic_grating_(grating_CC).jpg&oldid=802423587"