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Akimov, D. Yu.; Akimov, Yu.K.; Bogdzel, A.A.; Kovalenko, A. G.; Matveev, D. V.

doi:10.1023/a:1015360516905

Cited by 7 publications

(13 citation statements)

References 1 publication

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“…In the best case where the excitation is mediated by surface plasmons, we reach coupling efficiencies up to 44 % together with 24x lifetime reduction, enabling a FoM of 70 that out-performs previous realizations, where the FoMs were typically found in the range 4-10. 21,25,32,34,35 We take advantage of this high FoM to demonstrate long-range plasmon-mediated fluorescence energy transfer between two nanoparticles separated by 1.3 µm with 17 % efficiency. This work provides guidelines towards practical realizations of efficient long-range fluorescence energy transfer for integrated plasmonics and quantum nano-optics.…”

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confidence: 99%

Coupling Emitters and Silver Nanowires to Achieve Long-Range Plasmon-Mediated Fluorescence Energy Transfer

et al. 2016

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The development of quantum plasmonic circuitry requires efficient coupling between quantum emitters and plasmonic waveguides. A major experimental challenge is to simultaneously maximize the surface plasmon propagation length, the coupling efficiency into the plasmonic mode, and the Purcell factor. Addressing this challenge is also the key to enabling long-range energy transfer between quantum nanoemitters. Here, we use a dual-beam scanning confocal microscope to carefully investigate the interactions between fluorescent nanoparticles and surface plasmons on single-crystalline silver nanowires. By exciting the fluorescent nanoparticles via nanowire surface plasmons, we maximize the light-matter interactions and reach coupling efficiencies up to 44% together with 24× lifetime reduction and 4.1 μm propagation lengths. This improved optical performance enables the demonstration of long-range plasmon-mediated fluorescence energy transfer between two nanoparticles separated by micrometer distance. Our results provide guidelines toward practical realizations of efficient long-range fluorescence energy transfer for integrated plasmonics and quantum nano-optics.

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confidence: 99%

Coupling Emitters and Silver Nanowires to Achieve Long-Range Plasmon-Mediated Fluorescence Energy Transfer

et al. 2016

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“…For example, DFT can be used to compare the ground-state energies of different atom configurations or charges in different locations in a crystal lattice, but it does not tell how transitions between these states or locations occur. In TD-DFT, on the contrary, also the energy of the intermediate, non-equilibrium configurations through which the system evolves during the transitions from the initial to the final state are calculated, and based on the obtained energy landscape, the energetically most favorable path can be concluded 15,133,162 . This method, however, is costly computationally since many trajectories with slightly different initial states need to be calculated to collect enough statistics to accurately determine the reaction pathway 162 .…”

Section: Practical Limitations Of Density Functional Theory Calculationsmentioning

confidence: 99%

“…In TD-DFT, on the contrary, also the energy of the intermediate, non-equilibrium configurations through which the system evolves during the transitions from the initial to the final state are calculated, and based on the obtained energy landscape, the energetically most favorable path can be concluded 15,133,162 . This method, however, is costly computationally since many trajectories with slightly different initial states need to be calculated to collect enough statistics to accurately determine the reaction pathway 162 . This is reflected for example in the computational study by 46 Akimov et al 162 , who calculated only the RLS of OER on GaN surface, instead of computing the whole reaction sequence.…”

Section: Practical Limitations Of Density Functional Theory Calculationsmentioning

confidence: 99%

“…This method, however, is costly computationally since many trajectories with slightly different initial states need to be calculated to collect enough statistics to accurately determine the reaction pathway 162 . This is reflected for example in the computational study by 46 Akimov et al 162 , who calculated only the RLS of OER on GaN surface, instead of computing the whole reaction sequence. Furthermore, to provide computational efficiency necessary for the timedependent calculations, they did the calculations with pure DFT instead of DFT variants with electron self-interaction corrections 162 .…”

Section: Practical Limitations Of Density Functional Theory Calculationsmentioning

confidence: 99%

“…This is reflected for example in the computational study by 46 Akimov et al 162 , who calculated only the RLS of OER on GaN surface, instead of computing the whole reaction sequence. Furthermore, to provide computational efficiency necessary for the timedependent calculations, they did the calculations with pure DFT instead of DFT variants with electron self-interaction corrections 162 .…”

Section: Practical Limitations Of Density Functional Theory Calculationsmentioning

confidence: 99%

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Physical Modeling of Photoelectrochemical Hydrogen Production Devices

2015

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Solar-powered water splitting with photoelectrochemical (PEC) devices is a promising method to simultaneously harvest and store solar energy at a large scale. Highly efficient small prototype PEC devices reported recently demonstrate a move from basic material research towards design and engineering of complete devices and systems. The increased interest in engineering calls for better understanding about the operational details of PEC devices at different length scales. The relevant physical phenomena and the properties of typical materials are well known for separate device components, but their interaction in a complete PEC cell has received less attention. Coupled physical models are useful for studying these interactions and understanding the device operation as a whole, and for optimizing the devices. We review the central physical processes in solar-powered water splitting cells and the physical models used in their theoretical simulations. Our focus is in particular on how different physical processes have been coupled together to construct device models, and how different electrode and device geometries have been taken into account in them. Reflecting on the literature we discuss future opportunities and challenges in the modeling of PEC cells.3

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Single Plasmon Generation in an InAs/GaAs Quantum Dot in a Transfer-Printed Plasmonic Microring Resonator

Tamada

Ota²,

Kuruma

et al. 2019

ACS Photonics

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We report single plasmon generation with a self-assembled InAs/GaAs quantum dot embedded in a plasmonic microring resonator. The plasmonic cavity based on a GaAs microring is defined on an atomically-smooth silver surface. We fabricated this structure with the help of transfer printing, which enables the pick-and-place assembly of the complicated, heterogeneous three dimensional stack. We show that a high-order surface-plasmon-polariton transverse mode mediates efficient coupling between the InAs/GaAs quantum dots and the plasmonic cavity, paving the way for developing plasmonic quantum light sources based on the state-of-the-art solid-state quantum emitters. Experimentally, we observed Purcellenhanced radiation from the quantum dot coupled to the plasmonic mode. We also observed a strong anti-bunching in the intensity correlation histogram measured for scattered photons from the plasmonic resonator, indicating single plasmon generation in the resonator. Our results will be important in the development of quantum plasmonic circuits integrating high-performance single plasmon generators.

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Cited by 7 publications

References 1 publication

Coupling Emitters and Silver Nanowires to Achieve Long-Range Plasmon-Mediated Fluorescence Energy Transfer

Coupling Emitters and Silver Nanowires to Achieve Long-Range Plasmon-Mediated Fluorescence Energy Transfer

Physical Modeling of Photoelectrochemical Hydrogen Production Devices

Single Plasmon Generation in an InAs/GaAs Quantum Dot in a Transfer-Printed Plasmonic Microring Resonator

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