{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363670319159974784.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1063/1.95742"}},{"identifier":{"@type":"URI","@value":"https://pubs.aip.org/aip/apl/article-pdf/46/12/1156/18454355/1156_1_online.pdf"}}],"dc:title":[{"@value":"First observation of an extremely large-dipole infrared transition within the conduction band of a GaAs quantum well"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>A new type of optical transition in GaAs quantum wells has been observed. The dipole occurs between two envelope states of the conduction-band electron wave function, and is called a quantum well envelope state transition (QWEST). The QWEST is observed by infrared absorption for two structures with 65-Å-thick- and 82-Å-thick wells. The transitions exhibit resonant energies of 152 and 121 meV respectively, full width at half-maximum linewidths as narrow as 10 meV at room temperature, and an oscillator strength of 12.2. The material is anticipated to have subpicosecond relaxation times and be ideal for low-power optical digital logic.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380567005489338242","@type":"Researcher","foaf:name":[{"@value":"L. C. West"}],"jpcoar:affiliationName":[{"@value":"Ginzton Laboratory, Stanford University, Stanford, California 94305 and Lawrence Livermore National Laboratory, P. O. Box 808 L-278, Livermore, California 94550"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319159974785","@type":"Researcher","foaf:name":[{"@value":"S. J. 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