About: Photon noise

An Entity of Type: Thing, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

Photon noise is the randomness in signal associated with photons arriving at a detector. For a simple black body emitting on an absorber, the noise-equivalent power is given by where is the Planck constant, is the central frequency, is the bandwidth, is the occupation number and is the optical efficiency.

Property Value
dbo:abstract
  • Photon noise is the randomness in signal associated with photons arriving at a detector. For a simple black body emitting on an absorber, the noise-equivalent power is given by where is the Planck constant, is the central frequency, is the bandwidth, is the occupation number and is the optical efficiency. The first term is essentially shot noise whereas the second term is related to the bosonic character of photons, variously known as "Bose noise" or "wave noise". At low occupation number, such as in the visible spectrum, the shot noise term dominates. At high occupation number, however, typical of the radio spectrum, the Bose term dominates. (en)
dbo:wikiPageExternalLink
dbo:wikiPageID
  • 1652353 (xsd:integer)
dbo:wikiPageLength
  • 2504 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1119070836 (xsd:integer)
dbo:wikiPageWikiLink
dbp:wikiPageUsesTemplate
dcterms:subject
rdfs:comment
  • Photon noise is the randomness in signal associated with photons arriving at a detector. For a simple black body emitting on an absorber, the noise-equivalent power is given by where is the Planck constant, is the central frequency, is the bandwidth, is the occupation number and is the optical efficiency. (en)
rdfs:label
  • Photon noise (en)
owl:sameAs
prov:wasDerivedFrom
foaf:isPrimaryTopicOf
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
Powered by OpenLink Virtuoso    This material is Open Knowledge     W3C Semantic Web Technology     This material is Open Knowledge    Valid XHTML + RDFa
This content was extracted from Wikipedia and is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License