Doubly Resonant Photonic Antenna for Single Infrared Quantum Dot Imaging at Telecommunication Wavelengths

Xie, Zhihua; Lefier, Yannick; Suárez, Miguel Ángel; Mivelle, Mathieu; Salut, Roland; Mérolla, Jean-Marc; Grosjean, Thierry

doi:10.1021/acs.nanolett.6b04403

Cited by 20 publications

(10 citation statements)

References 41 publications

(84 reference statements)

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“…For the sake of clarity and simplicity, we consider the dipolar emission in the glass/Si/air slab since Green's tensors are analytical. For electric dipole parallel to the interfaces, we recover the bowtie aperture antenna configuration [38,48,57] with an additional circular grating. For other cases, we observe a circular symmetry, again in agreement with our EO optimization, with notably a core for magnetic Purcell factor optimization but without any core for the electric Purcell factor (not shown).…”

Section: Discussionmentioning

confidence: 99%

Magnetic and electric Purcell factor control through geometry optimization of high index dielectric nanostructures

Brûlé,

Wiecha,

Cuche

et al. 2022

Preprint

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We use evolutionary algorithms coupled to the Green's Dyadic Method (GDM) in order to optimize the geometry of planar dielectric nanoantennas designed for controlling the emission rate of magnetic or electric dipolar emitters (so-called Purcell factor). Depending on the nature and orientation of the dipoles, different optimized shapes are obtained, all presenting regular and periodical features. We discuss the physical origin of the obtained designs. GDM relies on spatial meshing well adapted to optimize nanostructures of finite thickness nanofabricated by e-beam lithography. However, optimized structures present morphological resonances extremelly sensitive to the object shape. Therefore, we complete our study considering finite element method to determine the maximum achievable magnetic Purcell factor. We assume the shape obtained from evolutionary optimization and determine the dimensions of a feasible 100 nm thickness planar dielectric silicon nanoantenna deposited on a glass substrate that leads to a ≃ 2 × 10 3 enhancement of the spontaneous decay rate of the magnetic dipolar transition in Eu 3+ ions. This work paves the way toward innovative applications of magnetic light-matter interactions such as optical negative-index metamaterials or quantum technological components.

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Section: Discussionmentioning

confidence: 99%

Magnetic and electric Purcell factor control through geometry optimization of high index dielectric nanostructures

Brûlé,

Wiecha,

Cuche

et al. 2022

Preprint

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show abstract

“…Another application would be to characterize the scattering behavior of NSOM probes with embedded nanoantennas at their extremities [23,45]. Due to the presence of defects at the subwavelength scale [46], the optical response of such nanoantennas might strongly deviate from expectations, and will depend on the environment.…”

Section: Coupled Nanoantennasmentioning

confidence: 99%

Near-Field Scanning Optical Microscope Combined with Digital Holography for Three-Dimensional Electromagnetic Field Reconstruction

Rahbany

Izeddin

Krachmalnicoff

et al. 2019

Biological and Medical Physics, Biomedical Engineering

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Near-field scanning optical microscopy (NSOM) has proven to be a very powerful imaging technique that allows overcoming the diffraction limit and obtaining information on a scale much smaller than what can be achieved by classical optical imaging techniques. This is achieved using nanosized probes that are placed in close proximity to the sample surface, and thus allow the detection of evanescent waves that contain important information about the properties of the sample on a subwavelength scale. In particular, some aperture-based probes use a nanometer-sized hole to locally illuminate the sample. The far-field radiation of such probes is essential to their imaging properties, but cannot be easily estimated since it highly depends on the environment with which it interacts. In this chapter, we tackle this problem by introducing a microscopy method based on full-field off-axis digital holography that allows us to study in details the three-dimensional electromagnetic field scattered by a NSOM probe in different environments. We start by describing the NSOM and holography techniques independently, and continue by highlighting the advantage of combining both methods. We present a comparative study of the reconstructed light from a NSOM tip located in free space or coupled to transparent and plasmonic media. While far-field methods, such as back focal plane imaging, can be used to infer the directionality of angular radiation patterns, the advantage of our technique is that a single hologram contains information on both the amplitude and phase of the scattered light, allowing to reverse numerically the propagation of the electromagnetic field towards the source. We also present Finite Difference Time Domain (FDTD) simulations to model the radiation of the NSOM tip as a superposition of a magnetic and an electric dipole. We finally propose some promising applications that could be performed with this combined NSOMholography technique.

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“…Plasmonic nanoapertures have shown great potential in optical sensing, − spectroscopy, − imaging, , nanofabrication, , trapping, − and nonlinear photonics . With their capacities of localizing electromagnetic field to subdiffraction regions, reducing detection volume to attoliters, and enabling background-free optical detection, nanoapertures are particularly attractive for scientific studies at the single-molecule level. − For example, their use in performing fluorescence correlation spectroscopy has enabled single-analyte characterization at high micromolar concentrations. , As optical nanotweezing elements, the nanoapertures have been used for sensing or analyzing various nanoparticles such as quantum dots, , proteins, , and DNA , with single-molecule resolution.…”

mentioning

confidence: 99%

“…P lasmonic nanoapertures have shown great potential in optical sensing, 1−5 spectroscopy, 6−9 imaging, 10,11 nanofabrication, 12,13 trapping, 14−16 and nonlinear photonics. 17 With their capacities of localizing electromagnetic field to subdiffraction regions, reducing detection volume to attoliters, and enabling background-free optical detection, nanoapertures are particularly attractive for scientific studies at the singlemolecule level.…”

mentioning

confidence: 99%

Enhancing Single-Molecule Fluorescence Spectroscopy with Simple and Robust Hybrid Nanoapertures

2021

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Plasmonic nanoapertures have found exciting applications in optical sensing, spectroscopy, imaging, and nanomanipulation. The subdiffraction optical field localization, reduced detection volume (∼attoliters), and background-free operation make them particularly attractive for single-particle and single-molecule studies. However, in contrast to the high field enhancements by traditional "nanoantenna"-based structures, small field enhancement in conventional nanoapertures results in weak light−matter interactions and thus small enhancement of spectroscopic signals (such as fluorescence and Raman signals) of the analytes interacting with the nanoapertures. In this work, we propose a hybrid nanoaperture design termed "gold-nanoislandsembedded nanoaperture" (AuNIs-e-NA), which provides multiple electromagnetic "hotspots" within the nanoaperture to achieve field enhancements of up to 4000. The AuNIs-e-NA was able to improve the fluorescence signals by more than 2 orders of magnitude with respect to a conventional nanoaperture. With simple design and easy fabrication, along with strong signal enhancements and operability over variable light wavelengths and polarizations, the AuNIs-e-NA will serve as a robust platform for surface-enhanced optical sensing, imaging, and spectroscopy.

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Doubly Resonant Photonic Antenna for Single Infrared Quantum Dot Imaging at Telecommunication Wavelengths

Cited by 20 publications

References 41 publications

Magnetic and electric Purcell factor control through geometry optimization of high index dielectric nanostructures

Magnetic and electric Purcell factor control through geometry optimization of high index dielectric nanostructures

Near-Field Scanning Optical Microscope Combined with Digital Holography for Three-Dimensional Electromagnetic Field Reconstruction

Enhancing Single-Molecule Fluorescence Spectroscopy with Simple and Robust Hybrid Nanoapertures

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