Quantum coherence effects in hybrid nanoparticle molecules in the presence of ultra-short dephasing times
We study quantum coherence effects in single nanoparticle systems consisting of a semiconductor quantum dot and a metallic nanoparticle in the presence of the ultra-short dephasing times of the quantum dots. The results suggest that coherent exciton-plasmon coupling can sustain the collective molecu...
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| Veröffentlicht in: | Applied physics letters 2012-11, Vol.101 (21) |
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| container_title | Applied physics letters |
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| creator | Sadeghi, S M |
| description | We study quantum coherence effects in single nanoparticle systems consisting of a semiconductor quantum dot and a metallic nanoparticle in the presence of the ultra-short dephasing times of the quantum dots. The results suggest that coherent exciton-plasmon coupling can sustain the collective molecular resonances (plasmonic meta-resonances) of these systems at about room temperature. We investigate quantum optical properties of the quantum dots under this condition, demonstrating formation of ultranarrow gain and absorption spectral lines. These results are discussed in terms of plasmonic normalization of coherent population oscillation and the collective states of the nanoparticle systems. |
| doi_str_mv | 10.1063/1.4767653 |
| format | Article |
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These results are discussed in terms of plasmonic normalization of coherent population oscillation and the collective states of the nanoparticle systems.</description><subject>Coherence</subject><subject>Coupling (molecular)</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Plasmonics</subject><subject>Quantum dots</subject><subject>Semiconductors</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEqWw4A-8hEWKH_FriSpeUiWEBOvIuGNilMTBdhb9e0LbPaurGZ070hyErilZUSL5HV3VSiop-AlaUKJUxSnVp2hBCOGVNIKeo4ucv-dRMM4XKLxNdihTj11sIcHgAIP34ErGYcDt7jOFLR7sEEebSnAd4D524KYO9kBpAY8J8r4YPZ66kmyV25gK3sLY2hyGL1xCD_kSnXnbZbg65hJ9PD68r5-rzevTy_p-UzlmRKmMJsx4x6QQRhgPjDImjdF1LZVlwmpfc-UcEGX91s4_2HnvwDJDhfOa8yW6OdwdU_yZIJemD9lB19kB4pQbWlOlpWazrX9RzjijQsyxRLcH1KWYcwLfjCn0Nu0aSpo_8w1tjub5L0ZOddc</recordid><startdate>20121119</startdate><enddate>20121119</enddate><creator>Sadeghi, S M</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20121119</creationdate><title>Quantum coherence effects in hybrid nanoparticle molecules in the presence of ultra-short dephasing times</title><author>Sadeghi, S M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c295t-98029fc2655959fe212269984467a25a8f437cce07afda233a67acea2915cf833</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Coherence</topic><topic>Coupling (molecular)</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Nanostructure</topic><topic>Plasmonics</topic><topic>Quantum dots</topic><topic>Semiconductors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sadeghi, S M</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sadeghi, S M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quantum coherence effects in hybrid nanoparticle molecules in the presence of ultra-short dephasing times</atitle><jtitle>Applied physics letters</jtitle><date>2012-11-19</date><risdate>2012</risdate><volume>101</volume><issue>21</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>We study quantum coherence effects in single nanoparticle systems consisting of a semiconductor quantum dot and a metallic nanoparticle in the presence of the ultra-short dephasing times of the quantum dots. The results suggest that coherent exciton-plasmon coupling can sustain the collective molecular resonances (plasmonic meta-resonances) of these systems at about room temperature. We investigate quantum optical properties of the quantum dots under this condition, demonstrating formation of ultranarrow gain and absorption spectral lines. These results are discussed in terms of plasmonic normalization of coherent population oscillation and the collective states of the nanoparticle systems.</abstract><doi>10.1063/1.4767653</doi></addata></record> |
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| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 2012-11, Vol.101 (21) |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1417868206 |
| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | Coherence Coupling (molecular) Nanocomposites Nanomaterials Nanostructure Plasmonics Quantum dots Semiconductors |
| title | Quantum coherence effects in hybrid nanoparticle molecules in the presence of ultra-short dephasing times |
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