Enhancement of two photon processes in quantum dots embedded in subwavelength metallic gratings.
Identifieur interne : 001446 ( Main/Exploration ); précédent : 001445; suivant : 001447Enhancement of two photon processes in quantum dots embedded in subwavelength metallic gratings.
Auteurs : RBID : pubmed:21263701English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Arsenicals, Indium.
- instrumentation : Lighting, Microscopy, Fluorescence, Multiphoton, Refractometry.
- Computer-Aided Design, Equipment Design, Equipment Failure Analysis, Quantum Dots.
Abstract
We show a large enhancement of two-photon absorption processes in nanocrystal quantum dots and of light upconversion efficiency from the IR to the near-IR spectral regime, using a hybrid optical device in which near-IR emitting InAs quantum dots were embedded on top a metallic nanoslit array. The resonant enhancement of these nonlinear optical processes is due to the strong local electromagnetic field enhancements inside the nanoslit array structure at the extraordinary transmission resonances. A maximal two-photon absorption enhancement of more than 20 was inferred. Different high field regions were identified for different polarizations, which can be used for designing and optimizing efficient nonlinear processes in such hybrid structures. Combining nanocrystal quantum dots with subwavelength metallic nanostructures is therefore a promising way for a range of possible nonlinear optical devices.
PubMed: 21263701
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Enhancement of two photon processes in quantum dots embedded in subwavelength metallic gratings.</title><author><name sortKey="Harats, Moshe G" uniqKey="Harats M">Moshe G Harats</name><affiliation wicri:level="1"><nlm:affiliation>Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel.</nlm:affiliation><country xml:lang="fr">Israël</country><wicri:regionArea>Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem</wicri:regionArea></affiliation></author><author><name sortKey="Schwarz, Ilai" uniqKey="Schwarz I">Ilai Schwarz</name></author><author><name sortKey="Zimran, Adiel" uniqKey="Zimran A">Adiel Zimran</name></author><author><name sortKey="Banin, Uri" uniqKey="Banin U">Uri Banin</name></author><author><name sortKey="Chen, Gang" uniqKey="Chen G">Gang Chen</name></author><author><name sortKey="Rapaport, Ronen" uniqKey="Rapaport R">Ronen Rapaport</name></author></titleStmt><publicationStmt><date when="2011">2011</date><idno type="RBID">pubmed:21263701</idno><idno type="pmid">21263701</idno><idno type="wicri:Area/Main/Corpus">001596</idno><idno type="wicri:Area/Main/Curation">001596</idno><idno type="wicri:Area/Main/Exploration">001446</idno></publicationStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Arsenicals (chemistry)</term><term>Computer-Aided Design</term><term>Equipment Design</term><term>Equipment Failure Analysis</term><term>Indium (chemistry)</term><term>Lighting (instrumentation)</term><term>Microscopy, Fluorescence, Multiphoton (instrumentation)</term><term>Quantum Dots</term><term>Refractometry (instrumentation)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Arsenicals</term><term>Indium</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="en"><term>Lighting</term><term>Microscopy, Fluorescence, Multiphoton</term><term>Refractometry</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Computer-Aided Design</term><term>Equipment Design</term><term>Equipment Failure Analysis</term><term>Quantum Dots</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We show a large enhancement of two-photon absorption processes in nanocrystal quantum dots and of light upconversion efficiency from the IR to the near-IR spectral regime, using a hybrid optical device in which near-IR emitting InAs quantum dots were embedded on top a metallic nanoslit array. The resonant enhancement of these nonlinear optical processes is due to the strong local electromagnetic field enhancements inside the nanoslit array structure at the extraordinary transmission resonances. A maximal two-photon absorption enhancement of more than 20 was inferred. Different high field regions were identified for different polarizations, which can be used for designing and optimizing efficient nonlinear processes in such hybrid structures. Combining nanocrystal quantum dots with subwavelength metallic nanostructures is therefore a promising way for a range of possible nonlinear optical devices.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">21263701</PMID><DateCreated><Year>2011</Year><Month>01</Month><Day>25</Day></DateCreated><DateCompleted><Year>2011</Year><Month>05</Month><Day>02</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1094-4087</ISSN><JournalIssue CitedMedium="Internet"><Volume>19</Volume><Issue>2</Issue><PubDate><Year>2011</Year><Month>Jan</Month><Day>17</Day></PubDate></JournalIssue><Title>Optics express</Title><ISOAbbreviation>Opt Express</ISOAbbreviation></Journal><ArticleTitle>Enhancement of two photon processes in quantum dots embedded in subwavelength metallic gratings.</ArticleTitle><Pagination><MedlinePgn>1617-25</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1364/OE.19.001617</ELocationID><Abstract><AbstractText>We show a large enhancement of two-photon absorption processes in nanocrystal quantum dots and of light upconversion efficiency from the IR to the near-IR spectral regime, using a hybrid optical device in which near-IR emitting InAs quantum dots were embedded on top a metallic nanoslit array. The resonant enhancement of these nonlinear optical processes is due to the strong local electromagnetic field enhancements inside the nanoslit array structure at the extraordinary transmission resonances. A maximal two-photon absorption enhancement of more than 20 was inferred. Different high field regions were identified for different polarizations, which can be used for designing and optimizing efficient nonlinear processes in such hybrid structures. Combining nanocrystal quantum dots with subwavelength metallic nanostructures is therefore a promising way for a range of possible nonlinear optical devices.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Harats</LastName><ForeName>Moshe G</ForeName><Initials>MG</Initials><Affiliation>Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel.</Affiliation></Author><Author ValidYN="Y"><LastName>Schwarz</LastName><ForeName>Ilai</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Zimran</LastName><ForeName>Adiel</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Banin</LastName><ForeName>Uri</ForeName><Initials>U</Initials></Author><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Gang</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Rapaport</LastName><ForeName>Ronen</ForeName><Initials>R</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Opt Express</MedlineTA><NlmUniqueID>101137103</NlmUniqueID><ISSNLinking>1094-4087</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Arsenicals</NameOfSubstance></Chemical><Chemical><RegistryNumber>045A6V3VFX</RegistryNumber><NameOfSubstance>Indium</NameOfSubstance></Chemical><Chemical><RegistryNumber>1303-11-3</RegistryNumber><NameOfSubstance>indium arsenide</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N">Arsenicals</DescriptorName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Computer-Aided Design</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Equipment Design</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Equipment Failure Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Indium</DescriptorName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Lighting</DescriptorName><QualifierName MajorTopicYN="Y">instrumentation</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Microscopy, Fluorescence, Multiphoton</DescriptorName><QualifierName MajorTopicYN="Y">instrumentation</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y">Quantum Dots</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Refractometry</DescriptorName><QualifierName MajorTopicYN="Y">instrumentation</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>1</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>1</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>5</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">209487</ArticleId><ArticleId IdType="pubmed">21263701</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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