Hybrid Photonic Antennas for Subnanometer Multicolor Localization and Nanoimaging of Single Molecules

Mivelle, Mathieu; Zanten, Thomas S. van; García-Parajo, María F.

doi:10.1021/nl502393b

Cited by 35 publications

(43 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These nanostructures can significantly enhance the interactions between quantum emitters (e.g., quantum dots, defect centers in crystals, molecules) and their surrounding photonic environment, leading to giant luminescence enhancement, ultrafast emission in the picosecond range, strong coupling, surface‐enhanced Raman scattering (SERS), optical interconnections, and control of emission patterns . Because of these advantages, plasmonic nanostructures are broadly used in many applications, including near‐field microscopy, biosensors, photovoltaics, photodetection, and medicine . However, the typical plasmonic materials, gold and silver, have finite conductivities at optical frequencies, leading to inherent dissipation of the electromagnetic energy.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopy and Biosensing with Optically Resonant Dielectric Nanostructures

Krasnok

Caldarola

Bonod

et al. 2018

Advanced Optical Materials

135

123

View full text Add to dashboard Cite

Resonant dielectric nanoparticles made of materials with large positive dielectric permittivity, such as Si, GaP, GaAs, have become a powerful platform for modern light science, enabling various fascinating applications in nanophotonics and quantum optics. In addition to light localization at the nanoscale, dielectric nanostructures provide electric and magnetic resonant responses throughout the visible and infrared spectrum, low dissipative losses and optical heating, low doping effect, and absence of quenching, which are interesting for spectroscopy and biosensing applications. This review presents state‐of‐the‐art applications of optically resonant high‐index dielectric nanostructures as a multifunctional platform for light–matter interactions. Nanoscale control of quantum emitters and applications for enhanced spectroscopy including fluorescence spectroscopy, surface‐enhanced Raman scattering, biosensing, and lab‐on‐a‐chip technology are surveyed. The theoretical background underlying these effects is described, realizations of specific resonant dielectric nanostructures and hybrid excitonic systems are overviewed, and an outlook of the challenges in this field, which remain open to future research, is provided.

show abstract

Section: Introductionmentioning

confidence: 99%

Spectroscopy and Biosensing with Optically Resonant Dielectric Nanostructures

Krasnok

Caldarola

Bonod

et al. 2018

Advanced Optical Materials

135

123

View full text Add to dashboard Cite

show abstract

“…The results provide opportunities for the design of heterodimers with tailored interactions, such as the coupling of plasmonic modes of different multipolar nature or the engineering of absorption within the dimers. They therefore provide efficient means to control of the nanoscale optical response, enabling efficient tuning of directional scattering, 14 Fano interferences, 65 molecular sensing 66 and multiple bright resonances for broadband fluorescence enhancement, 67 as well as second harmonic generation. 68 …”

Section: Discussionmentioning

confidence: 99%

Mode Coupling in Plasmonic Heterodimers Probed with Electron Energy Loss Spectroscopy

et al. 2017

View full text Add to dashboard Cite

While plasmonic antennas composed of building blocks made of the same material have been thoroughly studied, recent investigations have highlighted the unique opportunities enabled by making compositionally asymmetric plasmonic systems. So far, mainly heterostructures composed of nanospheres and nanodiscs have been investigated, revealing opportunities for the design of Fano resonant nanostructures, directional scattering, sensing and catalytic applications. In this article, an improved fabrication method is reported that enables precise tuning of the heterodimer geometry, with interparticle distances made down to a few nanometers between Au−Ag and Au−Al nanoparticles. A wide range of mode energy detuning and coupling conditions are observed by near field hyperspectral imaging performed with electron energy loss spectroscopy, supported by full wave analysis numerical simulations. These results provide direct insights into the mode hybridization of plasmonic heterodimers, pointing out the influence of each dimer constituent in the overall electromagnetic response. By relating the coupling of nondipolar modes and plasmon−interband interaction with the dimer geometry, this work facilitates the development of plasmonic heterostructures with tailored responses, beyond the possibilities offered by homodimers. KEYWORDS: optical nanoantennas, plasmonic heterostructures, bimetallic antennas, electron energy loss spectroscopy, electron beam lithography, eigenmodes C ollective oscillations of the conduction electrons in metal nanostructures, known as localized surface plasmon resonances, 1 have been intensively studied and designed by manipulating both the nanostructures size and geometry, as well as their dielectric environment.2 These investigations, carried out over the entire visible light spectrum, including the near-UV and near-IR, have demonstrated the control of both nanoscale optical fields and far field radiation, 1 leading to the concept of optical nanoantennas.2,3 The electromagnetic properties of these structures are governed by their eigenmodes, ranging from dipoles to high order multipoles. 4,5 When the nanoparticles are arranged in pairs or multimers, these modes couple to each other and hybridize, producing further optical properties. 6−8 In the simplest and most common geometry, involving the coupling of two selfsimilar spherical nanoparticles separated by a nanogap, a wellknown dipole−dipole interaction along the dimer axis is produced. 6 This coupling generates an intense and confined near field in the gap region, which can enable large nanoscale fluorescence enhancement 9 and surface enhanced Raman scattering down to the single molecule level. 10,11 Thanks to a complete description of the plasmonic coupling for spherical self-similar nanoparticle dimers, Nordlander and coauthors 7 have shown that the gap dependent hybridization in such nanostructures stems from the interaction of the uncoupled eigenmodes. Specifically, the uncoupled modes hybridize with bonding and antibonding interactions a...

show abstract

“…Nanophotonics has been experiencing an explosive development in recent years, triggered by tremendous achievements in material science and nanofabrication. This development led to advances in various vital applications, including microscopy [1]- [3], sensing [4]- [9], imaging [10], medicine [11], [12], light sources [13], [14], [23], [24], [15]- [22], and functional devices [25], [26]. These applications rely on the optical interactions of matter at the nanoscale.…”

Section: Introductionmentioning

confidence: 99%

Active Nanophotonics

Krasnok

Alù

2020

Proc. IEEE

View full text Add to dashboard Cite

Recent progress in nanofabrication has led to tremendous technological developments in nanophotonics, which rely on the interaction of light with nanostructured matter. Nanophotonics has experienced a large surge of interest in recent years, from basic research to applied technology.The increased importance of extremely low-energy data processing at ultra-fast speeds has been encouraging the use of light for signal transport and processing. Energy demands and interaction time scales become smaller with the physical size of the nanostructures, hence nanophotonics opens the opportunity of integrating a large number of devices that can generate, control, modulate, sense and process light signals at ultrafast speeds and below femtojoule/bit energy levels.However, losses and diffraction pose fundamental challenges to the fundamental ability of nanophotonic structures to confine light efficiently in smaller and smaller volumes. In this framework, active nanophotonics, which combines the latest advances in nanotechnology with gain materials, has become in recent years a vital area of optics research, both from the physics, material science, and engineering standpoint. In this paper, we review recent efforts in enabling active nanodevices for lasing and optical sources, loss compensation, and to realize new optical functionalities, like -symmetry, exceptional points and nontrivial lasing based on suitably engineered distributions of gain and loss in nanostructures.

show abstract

Hybrid Photonic Antennas for Subnanometer Multicolor Localization and Nanoimaging of Single Molecules

Cited by 35 publications

References 36 publications

Spectroscopy and Biosensing with Optically Resonant Dielectric Nanostructures

Spectroscopy and Biosensing with Optically Resonant Dielectric Nanostructures

Mode Coupling in Plasmonic Heterodimers Probed with Electron Energy Loss Spectroscopy

Active Nanophotonics

Contact Info

Product

Resources

About