scholarly journals Gap Nanoantennas toward Molecular Plasmonic Devices

2012 ◽  
Vol 2012 ◽  
pp. 1-19 ◽  
Author(s):  
Aude L. Lereu ◽  
Jacob P. Hoogenboom ◽  
Niek F. van Hulst
Keyword(s):  
Electric Field ◽  
Hybrid Systems ◽  
Fluorescence Lifetime ◽  
Local Field ◽  
A Priori ◽  
Single Molecules ◽  
Direct Route ◽  
Fluorescent Molecules

Recently we have demonstrated that single fluorescent molecules can be used as non-perturbative vectorial probes of the local field. Here, we expand on such experiments exploiting fluorescence lifetime of single molecules to probe various types of gap nanoantennas. First, studies of the nanoantennas are carried out to evaluate the electric field. We then investigate hybrid systems composed by nanoantennas and randomly positioned fluorescent molecules. Finally, we present a fabrication scheme for the controlled placement of fluorescent molecules at welldefined positions with respect to the dimer nanoantenna, which is a more direct route to probe the local field in ana prioridetermined way.

Temperature Dependence of the Local Field Effect in YAG:Ce3+ Nanocomposites

Nanoscale ◽  
2021 ◽  
Author(s):  
Anjun Huang ◽  
Konstantin K Pukhov ◽  
Ka Leung Wong ◽  
Peter A Tanner
Keyword(s):  
Electric Field ◽  
Temperature Dependence ◽  
Spontaneous Emission ◽  
Local Field ◽  
Field Effect ◽  
Emission Rate ◽  
Spontaneous Emission Rate ◽  
Local Field Effect

The spontaneous emission rate (SER) of a chromophore in a nanoparticle (NP) is determined by the modification of the electric field by its environment. Previous studies of this local field...

scholarly journals Local and macroscopic characterization with single molecules and single quantum emitters

2018 ◽  
Vol 190 ◽  
pp. 03002
Author(s):  
Andrei Naumov ◽  
Alexey Gorshelev ◽  
Maxim Gladush ◽  
Jurgen Köhler ◽  
Lothar Kador
Keyword(s):  
Local Field ◽  
Experimental Approach ◽  
Fluorescence Enhancement ◽  
Single Molecules ◽  
Cryogenic Temperatures ◽  
Single Quantum ◽  
Dielectric Characteristics ◽  
Solid Films ◽  
Field Effects ◽  
Imaging And Spectroscopy

We introduce an experimental approach for mapping effective local values of dielectric characteristics of solid films and the analysis of the related local-field effects. The characterisation technique is based on the imaging and spectroscopy of single chromophore molecules at cryogenic temperatures. The progress in the theory of fluorescence enhancement due to the local field effects is reported.

Local Field Effects Near Surfaces of Small Systems

1994 ◽  
Vol 366 ◽  
Author(s):  
David Beaglehole
Keyword(s):  
Dielectric Constant ◽  
External Field ◽  
Electric Field ◽  
Local Field ◽  
Computer Calculation ◽  
Local Fields ◽  
Small Systems ◽  
Shape Dependence ◽  
Self Consistent ◽  
Reflection Of Light

ABSTRACTThe interaction of light with a system of molecules depends upon the polarisation induced by an external electric field, which depends not only upon the external field but also upon the local fields due to neighboring polarised molecules. These local fields result in the traditional Clausius-Mossotti (CM) dielectric constant for a molecule deeply imbedded in a medium. Near the surface the local fields are altered, and the dielectric constant becomes anisotropic and dependent upon depth into the medium. The local fields are shape dependent in small systems and differ substantially from the CM value.A self-consistent computer calculation of the local fields has been implemented, and these effects will be shown using molecule positions and polarisabilities typical of liquids and crystals. The shape dependence of small systems, the reflection of light from liquids with fluctuating surfaces, and the effect of supporting substrates will be described.

Single molecules probe the polarization dynamics of poly (methyl methacrylate) in external electric field

2012 ◽  
Vol 100 (20) ◽  
pp. 203118 ◽  
Author(s):  
Ruiyun Chen ◽  
Guofeng Zhang ◽  
Yan Gao ◽  
Liantuan Xiao ◽  
Suotang Jia
Keyword(s):  
Electric Field ◽  
Methyl Methacrylate ◽  
External Electric Field ◽  
Single Molecules ◽  
Poly Methyl Methacrylate

scholarly journals Hierarchical Fault Diagnosis for a Hybrid System Based on a Multidomain Model

2015 ◽  
Vol 2015 ◽  
pp. 1-16
Author(s):  
Jiming Ma ◽  
Jianbin Guo
Keyword(s):  
Hybrid Systems ◽  
A Priori ◽  
Diagnostic Procedures ◽  
Experimental Result ◽  
Resonance Theory ◽  
Adaptive Resonance ◽  
Event Identification ◽  
Brushless Dc ◽  
Failure Event ◽  
Priori Information

The diagnosis procedure is performed by integrating three steps: multidomain modeling, event identification, and failure event classification. Multidomain model can describe the normal and fault behaviors of hybrid systems efficiently and can meet the diagnosis requirements of hybrid systems. Then the multidomain model is used to simulate and obtain responses under different failure events; the responses are further utilized as a priori information when training the event identification library. Finally, a brushless DC motor is selected as the study case. The experimental result indicates that the proposed method could identify the known and unknown failure events of the studied system. In particular, for a system with less response information under a failure event, the accuracy of diagnosis seems to be higher. The presented method integrates the advantages of current quantitative and qualitative diagnostic procedures and can distinguish between failures caused by parametric and abrupt structure faults. Another advantage of our method is that it can remember unknown failure types and automatically extend the adaptive resonance theory neural network library, which is extremely useful for complex hybrid systems.

scholarly journals Electric field induced fluorescence hysteresis of single molecules in poly(methyl methacrylate)

2014 ◽  
Vol 105 (15) ◽  
pp. 153301 ◽  
Author(s):  
Haitao Zhou ◽  
Chengbing Qin ◽  
Ruiyun Chen ◽  
Guofeng Zhang ◽  
Liantuan Xiao ◽  
...  
Keyword(s):  
Electric Field ◽  
Methyl Methacrylate ◽  
Single Molecules ◽  
Poly Methyl Methacrylate

scholarly journals Local-field effects on the near-surface and near-interface screened electric field in noble metals

2001 ◽  
Vol 64 (12) ◽  
Author(s):  
L. Calmels ◽  
J. E. Inglesfield ◽  
E. Arola ◽  
S. Crampin ◽  
Th. Rasing
Keyword(s):  
Electric Field ◽  
Local Field ◽  
Noble Metals ◽  
Near Surface ◽  
Field Effects
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