Non-fluorescent nanoscopic monitoring of a single trapped nanoparticle via nonlinear point sources
DC Field | Value | Language |
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dc.contributor.author | Yoon, Seung Ju | - |
dc.contributor.author | Lee, Jungmin | - |
dc.contributor.author | Han, Sangyoon | - |
dc.contributor.author | Kim, Chang-Kyu | - |
dc.contributor.author | Ahn, Chi Won | - |
dc.contributor.author | Kim, Myung-Ki | - |
dc.contributor.author | Lee, Yong-Hee | - |
dc.date.accessioned | 2021-09-02T10:19:36Z | - |
dc.date.available | 2021-09-02T10:19:36Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-06-07 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/74951 | - |
dc.description.abstract | Detection of single nanoparticles or molecules has often relied on fluorescent schemes. However, fluorescence detection approaches limit the range of investigable nanoparticles or molecules. Here, we propose and demonstrate a non-fluorescent nanoscopic trapping and monitoring platform that can trap a single sub-5-nm particle and monitor it with a pair of floating nonlinear point sources. The resonant photon funnelling into an extremely small volume of similar to 5 x 5 x 7 nm(3) through the three-dimensionally tapered 5-nm-gap plasmonic nanoantenna enables the trapping of a 4-nm CdSe/ZnS quantum dot with low intensity of a 1560-nm continuous-wave laser, and the pumping of 1560-nm femtosecond laser pulses creates strong background-free second-harmonic point illumination sources at the two vertices of the nanoantenna. Under the stable trapping conditions, intermittent but intense nonlinear optical spikes are observed on top of the second-harmonic signal plateau, which is identified as the 3.0-Hz Kramers hopping of the quantum dot trapped in the 5-nm gap. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | HARMONIC GENERATION | - |
dc.subject | OPTICAL TWEEZERS | - |
dc.subject | SCATTERING | - |
dc.subject | PROTEIN | - |
dc.title | Non-fluorescent nanoscopic monitoring of a single trapped nanoparticle via nonlinear point sources | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Myung-Ki | - |
dc.identifier.doi | 10.1038/s41467-018-04689-5 | - |
dc.identifier.scopusid | 2-s2.0-85048248872 | - |
dc.identifier.wosid | 000434379800015 | - |
dc.identifier.bibliographicCitation | NATURE COMMUNICATIONS, v.9 | - |
dc.relation.isPartOf | NATURE COMMUNICATIONS | - |
dc.citation.title | NATURE COMMUNICATIONS | - |
dc.citation.volume | 9 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | HARMONIC GENERATION | - |
dc.subject.keywordPlus | OPTICAL TWEEZERS | - |
dc.subject.keywordPlus | SCATTERING | - |
dc.subject.keywordPlus | PROTEIN | - |
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