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Enhanced Spectroscopies and Nanoimaging 2021最新文献

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Visualizing Pattern Formation in Polymer Blends Using Near-Field Vibrational Infrared Imaging 利用近场振动红外成像技术可视化聚合物共混物的模式形成
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-03 DOI: 10.1117/12.2594641
T. Habteyes, Chih-Feng Wang, T. Tesema, Hamed Kookhaee
{"title":"Visualizing Pattern Formation in Polymer Blends Using Near-Field Vibrational Infrared Imaging","authors":"T. Habteyes, Chih-Feng Wang, T. Tesema, Hamed Kookhaee","doi":"10.1117/12.2594641","DOIUrl":"https://doi.org/10.1117/12.2594641","url":null,"abstract":"","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131181579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nonlinear Light Generation from a Single Plasmonic Nanorod Strongly Coupled to a WSe2 Monolayer 单等离子体纳米棒与WSe2单层强耦合产生的非线性光
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-03 DOI: 10.1117/12.2593251
H. Harutyunyan
{"title":"Nonlinear Light Generation from a Single Plasmonic Nanorod Strongly Coupled to a WSe2 Monolayer","authors":"H. Harutyunyan","doi":"10.1117/12.2593251","DOIUrl":"https://doi.org/10.1117/12.2593251","url":null,"abstract":"Monolayer transition metal dichalcogenides, coupled to metal plasmonic nanocavities, have recently emerged as new platforms for strong light–matter interactions. These systems are expected to have nonlinear-optical properties that will enable them to be used as entangled photon sources, compact wave-mixing devices, and other elements for classical and quantum photonic technologies. Here, we report the first experimental investigation of the nonlinear properties of these strongly coupled systems, by observing second harmonic generation from a WSe2 monolayer strongly coupled to a single gold nanorod. The pump-frequency dependence of the second-harmonic signal displays a pronounced splitting that can be explained by a coupled-oscillator model with second-order nonlinearities. Rigorous numerical simulations utilizing a nonperturbative nonlinear hydrodynamic model of conduction electrons support this interpretation and reproduce experimental results. Our study thus lays the groundwork for understanding the nonlinear properties of strongly coupled nanoscale systems.","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127638086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Engineering new nonlinear optical nanomaterials and nanophotonic structures 工程新型非线性光学纳米材料和纳米光子结构
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-02 DOI: 10.1117/12.2603661
P. Schuck
{"title":"Engineering new nonlinear optical nanomaterials and nanophotonic structures","authors":"P. Schuck","doi":"10.1117/12.2603661","DOIUrl":"https://doi.org/10.1117/12.2603661","url":null,"abstract":"","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122815246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrochemical TERS for the resolution of complex reaction mechanisms 电化学TERS用于复杂反应机理的解析
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-02 DOI: 10.1117/12.2599126
Alice Fiocco, L. Fillaud, E. Maisonhaute, Jean‐Marc Noël, I. Lucas
{"title":"Electrochemical TERS for the resolution of complex reaction mechanisms","authors":"Alice Fiocco, L. Fillaud, E. Maisonhaute, Jean‐Marc Noël, I. Lucas","doi":"10.1117/12.2599126","DOIUrl":"https://doi.org/10.1117/12.2599126","url":null,"abstract":"The reactivity of electrochemically-active molecular architectures immobilized on electrode surfaces was investigated by electrochemical-TERS, at relatively high potential sweep rate and on broad potential ranges. A complex electrochemical mechanism, involving reaction intermediates and multiple reaction paths, could be resolved on electroactive architectures based on nitrobenzene derivatives. Further EC-TERS investigations on these derivatives assembled as mono- or multilayers on the electrode surface emphasized the influence of the structure of the molecular assemblies on their reactivity. Under specific conditions, azo bonds formation between nitrobenzene derivatives observed by TERS can result from the electrochemical polarization/reaction, and not from photochemical processes.","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133278872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Real-space investigation on coherent intermolecular dipole-dipole coupling with sub-molecular resolved optical spectroscopy 相干分子间偶极-偶极耦合的亚分子分辨光谱实空间研究
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-01 DOI: 10.1117/12.2594356
Yange Zhang
{"title":"Real-space investigation on coherent intermolecular dipole-dipole coupling with sub-molecular resolved optical spectroscopy","authors":"Yange Zhang","doi":"10.1117/12.2594356","DOIUrl":"https://doi.org/10.1117/12.2594356","url":null,"abstract":"Understanding intermolecular electronic energy transfer mechanism in a donor-acceptor system is important for engineering light harvesting in photosynthesis and photovoltaics. Extensive efforts have been made to investigate the intermolecular electronic energy transfer from the energy, and time domains. However, it is still unknown how different types of electronic energy transfer are manifested in real space, due to the diffraction limitation in conventional far-field optics. The scanning tunneling microscope induced luminescence (STML) technique can do nano-imaging beyond diffraction limit and allows to optically access each individual constituent of a donor–acceptor molecular system. In this talk, I shall present the real-space investigation on the electronic energy transfer in donor-acceptor systems with sub-nanometer resolved STML imaging technique.","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125034685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanoscale characterization of the surface plasmon catalysis with electrochemical tip-enhanced Raman spectroscopy 用电化学尖端增强拉曼光谱表征表面等离子体催化的纳米尺度
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-01 DOI: 10.1117/12.2595112
Xiang Wang, Sheng-Chao Huang, Yifan Bao, Tengxiang Huang, B. Ren
{"title":"Nanoscale characterization of the surface plasmon catalysis with electrochemical tip-enhanced Raman spectroscopy","authors":"Xiang Wang, Sheng-Chao Huang, Yifan Bao, Tengxiang Huang, B. Ren","doi":"10.1117/12.2595112","DOIUrl":"https://doi.org/10.1117/12.2595112","url":null,"abstract":"Electrochemical tip-enhanced Raman spectroscopy (EC-TERS), which provides molecular fingerprint information with nanometer-scale spatial resolution, is a promising technique to study the structure-activity relationships of the electrochemical interface. In this work, we developed the electrochemical tip-enhanced Raman spectroscopy (EC-TERS) that possesses high sensitivity and nanoscale spatial resolution, as well as methods to fabricate TERS tips with a high enhancement. Based on the developed systems, we in-situ monitor the plasmon driven decarboxylation reaction. The spatial distribution of the effective hot carriers was visualized by TERS imaging of the nanoscale reaction region, which provides mechanistic insights into plasmon driven reactions.","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"10 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125811996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chiral-Label-Free SERS Strategies for Discriminating Small Chiral Molecules 无手性标记SERS策略鉴别小手性分子
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-01 DOI: 10.1117/12.2593868
Yue Wang
{"title":"Chiral-Label-Free SERS Strategies for Discriminating Small Chiral Molecules","authors":"Yue Wang","doi":"10.1117/12.2593868","DOIUrl":"https://doi.org/10.1117/12.2593868","url":null,"abstract":"Charge-transfer based surface-enhanced Raman scattering (SERS) is a promising tool for chiral-label-free discrimination of small molecules with the superiority of chirality signal amplification, synchronous distinction and identification, and high sensitivity. Such chiral-label-free SERS strategy need neither any chiral auxiliary nor circularly polarized light, which opens up a new way for chiral discrimination.","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122788172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploiting the plasmonic trapping in single-molecule junctions 利用单分子结中的等离子体捕获
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-01 DOI: 10.1117/12.2594096
Katrin F. Domke, Albert C. Aragonès
{"title":"Exploiting the plasmonic trapping in single-molecule junctions","authors":"Katrin F. Domke, Albert C. Aragonès","doi":"10.1117/12.2594096","DOIUrl":"https://doi.org/10.1117/12.2594096","url":null,"abstract":"Inspired by the proposal that single molecules will be functional elements of future nanoelectronic devices, there exists considerable interest in understanding charge transport in individual molecules. \u0000To study charge transport in single-molecule junctions, we exploit the STM microscope’s Blinking approach. It is a “current vs. time” molecular capturing procedure, able to electrically detect spontaneous individual molecular junctions under a constant sub-nm precise interelectrode distance. Here, we will present a novel plasmon-supported methodology (PBJ), based on Blinking to increase the timescale of the junctions. The (stabilising) force of the nearfield gradient is exploited to provide additional endurance to junctions, increasing the detected lifetime from hundreds of milliseconds to the order of seconds. Also, we will present our advances exploiting PBJ under electrochemical control, trapping redox metalloproteins resonant to the localized surface plasmon excitation wavelength.","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126963974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
chrial discrimination by TERS 性别歧视
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-01 DOI: 10.1117/12.2594427
Y. Ozaki
{"title":"chrial discrimination by TERS","authors":"Y. Ozaki","doi":"10.1117/12.2594427","DOIUrl":"https://doi.org/10.1117/12.2594427","url":null,"abstract":"","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125624530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metamaterial enhanced ultrasensitive spectroscopy techniques 超材料增强超灵敏光谱学技术
Enhanced Spectroscopies and Nanoimaging 2021 Pub Date : 2021-08-01 DOI: 10.1117/12.2596666
Takuo Tanaka
{"title":"Metamaterial enhanced ultrasensitive spectroscopy techniques","authors":"Takuo Tanaka","doi":"10.1117/12.2596666","DOIUrl":"https://doi.org/10.1117/12.2596666","url":null,"abstract":"Experimental and theoretical studies of a metamaterial enhanced vibrational spectroscopy techniques are presented. We design a metamaterial consisting of vertically oriented metal insulator metal (MIM) structures with a 25 nm gap sandwiched between two metal films. By using vertical-oriented MIM structure we successfully detected 20 ppm concentration of carbon dioxide and butane molecules with negligible background noise. Metasmaterial structure was also applied for the vibrational CD spectroscopy by exploiting super-chiral field. We experimentally demonstrate high-sensitive mirror symmetric vibrational CD spectra of D- and L-alanine depending on the handedness of the metamaterial structures.","PeriodicalId":243760,"journal":{"name":"Enhanced Spectroscopies and Nanoimaging 2021","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124324522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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