Plasmonic Nanoantenna Arrays as Efficient Etendue Reducers for Optical Detection

Wang, Shaojun; Le‐Van, Quynh; Peyronel, Thibault; Ramezani, Mohammad; Hoof, Niels van; Tiecke, Tobias; Rivas, Jaime Gómez

doi:10.1021/acsphotonics.8b00298

Cited by 26 publications

(23 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The improvement of the quality factor relies on the enhanced radiative coupling of the individual nanoparticles, and as mentioned before, the modes that are formed through this condition are the SLRs. Arrays of optical antennas supporting SLRs can be regarded and the optical analog of antenna phased arrays that emit electromagnetic waves only in defined directions given by the relative phases of the individual antennas [60,61]. Some examples of such arrays are shown in the scanning electron microscope (SEM) images of Figs.…”

Section: Surface Lattice Resonancesmentioning

confidence: 99%

Strong light–matter coupling and exciton-polariton condensation in lattices of plasmonic nanoparticles [Invited]

2019

Self Cite

View full text Add to dashboard Cite

DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:

show abstract

Section: Surface Lattice Resonancesmentioning

confidence: 99%

Strong light–matter coupling and exciton-polariton condensation in lattices of plasmonic nanoparticles [Invited]

2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…To elucidate the effect of different dielectric substrates, we investigate additional WS 2 monolayers transferred to hydrophobic polystyrene, hydrophilic fused silica, and alumina/silica. We chose these substrates due to their extended use in nanophotonic applications . We plot the normalized time‐resolved PL decay measurements of monolayer WS 2 , obtained via FLIM, before and after soft‐transfer encapsulation in these dielectric substrates in Figure S3 (Supporting Information).…”

Section: Effect Of Changing Dielectric Environmentmentioning

confidence: 99%

Preserving the Emission Lifetime and Efficiency of a Monolayer Semiconductor upon Transfer

Barker

Wang

Godiksen

et al. 2019

Advanced Optical Materials

Self Cite

View full text Add to dashboard Cite

sources for highly efficient emission [8][9][10] and lasing. [11,12] The lack of inversion symmetry and strong spin-orbit coupling in monolayers allows circularly polarized light to populate excitons in a given valley with a defined momentum direction. [13][14][15][16] Such valley polarization enables the storage of information in the valley degree of freedom and the development of valleytronic devices. [6,17] Despite being atomically thin, monolayer TMDs show strong absorption in the visible and near-infrared regimes, with absorption coefficients as high as ≈15%. [18] Such strong interactions with light make TMDs ideal for applications in integrated photonics, photodetectors, and other nanoscale devices. [8,19] Further enhancement [20][21][22][23] and tuning [24][25][26][27] of light-matter interaction is still possible through the integration of monolayers into nanophotonic architectures. In structures such as microcavities [20][21][22] or metal nanoantennas, [23,25,26,28,29] dielectric layers are frequently placed on top of the TMD monolayer to tune optical resonances, to protect the samples from degradation, or as spacers to avoid charge transfer. In this way, TMD monolayers may be surrounded by a dielectric environment that could modify their absorption and emission, which if controllable, is desirable for engineering properties such as the optical density of states or dielectric screening. [30][31][32] Furthermore, variations in fabrication methods and processing techniques of these configurations can also lead to the uncontrolled modification in emission efficiency and photoluminescence (PL) lifetime of the mono layers. [33] Additionally, the effect of dielectric substrates on excitonic resonances and binding energy of TMD monolayers has been under discussion. [34][35][36][37][38][39] The extent of the modification of emission efficiency and lifetime caused by the dielectric environment and the possibility of preserving the emission properties of high-quality monolayers is particularly important for integrating TMDs into viable devices and heterostructures.Here, we clarify the impact that transferring TMD monolayers to different dielectric environments has on their photoluminescent properties. We use micro-PL imaging and fluorescence lifetime imaging (FLIM) to characterize the PL emission intensity and lifetime of monolayers, respectively. Firstly, we investigate differences arising from encapsulation methods and employ two different processing techniques, spin coating and soft transfer, to encapsulate exfoliated WS 2 monolayers Monolayer transition metal dichalcogenides (TMDs) are promising semiconductors for nanoscale photonics and optoelectronics due to their strong interactions with light. However, processes that integrate TMDs into nanophotonic and optoelectronic devices can introduce defects in the monolayers, resulting in lower emission efficiency. Quality control is therefore needed to process monolayer semiconductors effectively. Through micro-photoluminescence and fluorescence lifetime imaging me...

show abstract

“…They showed experimentally that this nano-patterned approach improved the optical gain of the antenna from 2.2 to 3.2. Wang et al [89] reported that arrays of metallic nanoparticles can act as étendue reducers. They have shown that an aluminium nanoparticle array can interact with dye molecules suspended in a polymer and change the angle distribution of the emission.…”

Section: Fluorescent Antennas For Visible Light Communicationsmentioning

confidence: 99%

Organic semiconductors for visible light communications

Manousiadis

Yoshida

Turnbull

et al. 2020

Phil. Trans. R. Soc. A.

View full text Add to dashboard Cite

Organic semiconductors are an important class of optoelectronic material that are widely studied because of the scope for tuning their properties by tuning their chemical structure, and simple fabrication to make flexible films and devices. Although most effort has focused on developing displays and lighting from these materials, their distinctive properties also make them of interest for visible light communications (VLCs). This article explains how their properties make them suitable for VLC and reviews the main uses that have been explored. On the transmitter side, record white VLC communication has been achieved by using organic semiconductors as colour converters, while direct modulation of organic light-emitting diodes is also possible and could be of interest for display-to-display communication. On the receiver side, organic solar cells can be used to harvest power and data simultaneously, and fluorescent antennas enable fast and sensitive receivers with large field of view. This article is part of the theme issue ‘Optical wireless communication’.

show abstract

Plasmonic Nanoantenna Arrays as Efficient Etendue Reducers for Optical Detection

Cited by 26 publications

References 38 publications

Strong light–matter coupling and exciton-polariton condensation in lattices of plasmonic nanoparticles [Invited]

Strong light–matter coupling and exciton-polariton condensation in lattices of plasmonic nanoparticles [Invited]

Preserving the Emission Lifetime and Efficiency of a Monolayer Semiconductor upon Transfer

Organic semiconductors for visible light communications

Contact Info

Product

Resources

About