{"@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/1362825895602828032.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1126/science.283.5408.1706"}},{"identifier":{"@type":"URI","@value":"https://www.science.org/doi/pdf/10.1126/science.283.5408.1706"}},{"identifier":{"@type":"PMID","@value":"10073929"}},{"identifier":{"@type":"NAID","@value":"30020364244"}}],"dc:title":[{"@value":"A Well-Collimated Quasi-Continuous Atom Laser"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Extraction of sodium atoms from a trapped Bose-Einstein condensate (BEC) by a coherent, stimulated Raman process is demonstrated. Optical Raman pulses drive transitions between trapped and untrapped magnetic sublevels, giving the output-coupled BEC fraction a well-defined momentum. The pulsed output coupling can be run at such a rate that the extracted atomic wave packets strongly overlap, forming a highly directional, quasi-continuous matter wave.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382825895602828034","@type":"Researcher","foaf:name":[{"@value":"E. W. Hagley"}],"jpcoar:affiliationName":[{"@value":"National Institute of Standards and Technology, Gaithersburg, MD 20899, USA."}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895602828035","@type":"Researcher","foaf:name":[{"@value":"L. Deng"}],"jpcoar:affiliationName":[{"@value":"National Institute of Standards and Technology, Gaithersburg, MD 20899, USA."},{"@value":"Georgia Southern University, Statesboro, GA 30460, USA."}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895602828036","@type":"Researcher","foaf:name":[{"@value":"M. Kozuma"}],"jpcoar:affiliationName":[{"@value":"Institute of Physics, University of Tokyo, Tokyo 153-8902, Japan."}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895602828037","@type":"Researcher","foaf:name":[{"@value":"J. Wen"}],"jpcoar:affiliationName":[{"@value":"National Institute of Standards and Technology, Gaithersburg, MD 20899, USA."}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895602828032","@type":"Researcher","foaf:name":[{"@value":"K. Helmerson"}],"jpcoar:affiliationName":[{"@value":"National Institute of Standards and Technology, Gaithersburg, MD 20899, USA."}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895602828038","@type":"Researcher","foaf:name":[{"@value":"S. L. Rolston"}],"jpcoar:affiliationName":[{"@value":"National Institute of Standards and Technology, Gaithersburg, MD 20899, USA."}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895602828033","@type":"Researcher","foaf:name":[{"@value":"W. D. Phillips"}],"jpcoar:affiliationName":[{"@value":"National Institute of Standards and Technology, Gaithersburg, MD 20899, USA."}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00368075"},{"@type":"EISSN","@value":"10959203"}],"prism:publicationName":[{"@value":"Science"}],"dc:publisher":[{"@value":"American Association for the Advancement of Science (AAAS)"}],"prism:publicationDate":"1999-03-12","prism:volume":"283","prism:number":"5408","prism:startingPage":"1706","prism:endingPage":"1709"},"reviewed":"false","url":[{"@id":"https://www.science.org/doi/pdf/10.1126/science.283.5408.1706"}],"createdAt":"2002-07-27","modifiedAt":"2024-01-13","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1390001204180751232","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Free Fall of Atomic Laser Beam with Weak Inter-Atomic Interaction."}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204184288512","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Free Expansion of a Bose-Einstein Condensate."}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679625794048","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Development of a single-frequency deep-ultraviolet coherent light source"},{"@language":"ja","@value":"単一周波数深紫外コヒーレント光源の開発"}]},{"@id":"https://cir.nii.ac.jp/crid/1520572358782766336","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@value":"最近の技術から シリコン原子レーザー冷却のための連続波深紫外コヒーレント光源の開発"},{"@language":"ja-Kana","@value":"サイキン ノ ギジュツ カラ シリコン ゲンシ レーザー レイキャク ノ タメ ノ レンゾクハ シンシガイ コヒーレント コウゲン ノ カイハツ"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1126/science.283.5408.1706"},{"@type":"CIA","@value":"30020364244"},{"@type":"OPENAIRE","@value":"doi_dedup___::f695241bc76c963e117247f54cccff5a"},{"@type":"CROSSREF","@value":"10.1143/jpsj.71.1044_references_DOI_HbgabeKjBVFfvLNpQV2kPmLTJ67"},{"@type":"CROSSREF","@value":"10.1143/jpsj.70.60_references_DOI_HbgabeKjBVFfvLNpQV2kPmLTJ67"},{"@type":"CROSSREF","@value":"10.2184/lsj.35.55_references_DOI_HbgabeKjBVFfvLNpQV2kPmLTJ67"}]}