About: Coherent effects in semiconductor optics

Facets (new session)
Description
Metadata
Settings
- Rule:
- Inverse Functional Properties:
- "Same As":

About: Coherent effects in semiconductor optics Goto Sponge NotDistinct Permalink

An Entity of Type : yago:Substance100019613, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)
QRcode icon

http://dbpedia.demo.openlinksw.com/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FCoherent_effects_in_semiconductor_optics&invfp=IFP_OFF&sas=SAME_AS_OFF

The interaction of matter with light, i.e., electromagnetic fields, is able to generate a coherent superposition of excited quantum states in the material. Coherent denotes the fact that the material excitations have a well defined phase relation which originates from the phase of the incident electromagnetic wave. Macroscopically, the superposition state of the material results in an optical polarization, i.e., a rapidly oscillating dipole density. The optical polarization is a genuine non-equilibrium quantity that decays to zero when the excited system relaxes to its equilibrium state after the electromagnetic pulse is switched off. Due to this decay which is called dephasing, coherent effects are observable only for a certain temporal duration after pulsed photoexcitation. Various mater

Attributes	Values
rdf:type	yago:WikicatSemiconductorMaterials yago:Abstraction100002137 yago:Material114580897 yago:Matter100020827 yago:Part113809207 yago:PhysicalEntity100001930 yago:Relation100031921 yago:Substance100019613
rdfs:label	Coherent effects in semiconductor optics (en)
rdfs:comment	The interaction of matter with light, i.e., electromagnetic fields, is able to generate a coherent superposition of excited quantum states in the material. Coherent denotes the fact that the material excitations have a well defined phase relation which originates from the phase of the incident electromagnetic wave. Macroscopically, the superposition state of the material results in an optical polarization, i.e., a rapidly oscillating dipole density. The optical polarization is a genuine non-equilibrium quantity that decays to zero when the excited system relaxes to its equilibrium state after the electromagnetic pulse is switched off. Due to this decay which is called dephasing, coherent effects are observable only for a certain temporal duration after pulsed photoexcitation. Various mater (en)
dcterms:subject	Semiconductor materials
Wikipage page ID	39444110 (xsd:integer)
Wikipage revision ID	1121642730 (xsd:integer)
Link from a Wikipage to another Wikipage	Quantum state Electromagnetic wave Population inversion Quantum states Maxwell's equations Spin echo Wannier equation Quantum beats Quantum optics Coherence (physics) Electric field Electromagnetic fields Cluster-expansion approach Phase (waves) Stark effect Superposition principle Wave equation Absolute value Felix Bloch Femtoseconds Semiconductor materials Terahertz radiation Terahertz spectroscopy and technology Polarization (waves) Nanostructures Semiconductor Bloch equations Semiconductor luminescence equations Exciton Semiconductor laser theory Photoexcitation Superradiance Optical Bloch equations Coulomb interaction Squared modulus dbr:Many-body_effects dbr:Semiconductor_quantum_optics_with_dots
Link from a Wikipage to an external page	https://archive.org/details/opticalcoherence0000mand https://archive.org/details/semiconductoropt2002scha
sameAs	Coherent effects in semiconductor optics Coherent effects in semiconductor optics Coherent effects in semiconductor optics Coherent effects in semiconductor optics
dbp:wikiPageUsesTemplate	dbt:Cite_book dbt:Clarify dbt:Reflist dbt:Short_description dbt:Use_American_English
has abstract	The interaction of matter with light, i.e., electromagnetic fields, is able to generate a coherent superposition of excited quantum states in the material. Coherent denotes the fact that the material excitations have a well defined phase relation which originates from the phase of the incident electromagnetic wave. Macroscopically, the superposition state of the material results in an optical polarization, i.e., a rapidly oscillating dipole density. The optical polarization is a genuine non-equilibrium quantity that decays to zero when the excited system relaxes to its equilibrium state after the electromagnetic pulse is switched off. Due to this decay which is called dephasing, coherent effects are observable only for a certain temporal duration after pulsed photoexcitation. Various materials such as atoms, molecules, metals, insulators, semiconductors are studied using coherent optical spectroscopy and such experiments and their theoretical analysis has revealed a wealth of insights on the involved matter states and their dynamical evolution. This article focusses on coherent optical effects in semiconductors and semiconductor nanostructures. After an introduction into the basic principles, the semiconductor Bloch equations (abbreviated as SBEs) which are able to theoretically describe coherent semiconductor optics on the basis of a fully microscopic many-body quantum theory are introduced. Then, a few prominent examples for coherent effects in semiconductor optics are described all of which can be understood theoretically on the basis of the SBEs. (en)
gold:hypernym	Quantity
prov:wasDerivedFrom	wikipedia-en:Coherent_effects_in_semiconductor_optics?oldid=1121642730&ns=0
page length (characters) of wiki page	32769 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Coherent_effects_in_semiconductor_optics
is Link from a Wikipage to another Wikipage of	Spin echo Quantum beats Stark effect Semiconductor luminescence equations Semiconductor laser theory Superradiance
is foaf:primaryTopic of	wikipedia-en:Coherent_effects_in_semiconductor_optics

Faceted Search & Find service v1.17_git139 as of Feb 29 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (378 GB total memory, 59 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software