Gain induced optical transparency in metamaterials

Strangi, Giuseppe; Luca, Antonio De; Ravaine, Serge; Mélanie, F; Bartolino, Roberto

doi:10.1063/1.3599566

Cited by 47 publications

(36 citation statements)

References 18 publications

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“…There is a wide range of applications for metamaterials, extending from thermal (Maldovan 2013) to acoustic (Craster and Guenneau 2013) properties; our focus in this review lies in the electromagnetic properties of plasmonics and photonics. While photonics studies features underlying the transmission of photons, plasmonics looks at energy from the collective oscillation of free electrons (plasmons) (De Luca et al 2011; Naik and Boltasseva 2011; Sreekanth et al 2013, 2014, Strangi et al 2011). Metamaterials are envisioned to find broad applicability in plasmonics and photonics, such as for super antennas, data and energy storage devices, photovoltaics and other solar technologies, light-emitting diodes (LEDs), etc.…”

Section: Nanomanufacturing Of Mesoscale Devices With Nanoscale Featmentioning

confidence: 99%

Photonics and plasmonics go viral: self-assembly of hierarchical metamaterials

Wen

Podgornik

Strangi

et al. 2015

Rend. Fis. Acc. Lincei

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Sizing and shaping of mesoscale architectures with nanoscale features is a key opportunity to produce the next generation of higher-performing products and at the same time unveil completely new phenomena. This review article discusses recent advances in the design of novel photonic and plasmonic structures using a biology-inspired design. The proteinaceous capsids from viruses have long been discovered as platform technologies enabling unique applications in nanotechnology, materials, bioengineering, and medicine. In the context of materials applications, the highly organized structures formed by viral capsid proteins provide a 3D scaffold for the precise placement of plasmon and gain materials. Based on their highly symmetrical structures, virus-based nanoparticles have a high propensity to self-assemble into higher-order crystalline structures, yielding hierarchical hybrid materials. Recent advances in the field have led to the development of virus-based light harvesting systems, plasmonic structures for application in high-performance metamaterials, binary nanoparticle lattices, and liquid crystalline arrays for sensing or display technologies. There is still much that could be explored in this area, and we foresee that this is only the beginning of great technological advances in virus-based materials for plasmonics and photonics applications.

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Section: Nanomanufacturing Of Mesoscale Devices With Nanoscale Featmentioning

confidence: 99%

Photonics and plasmonics go viral: self-assembly of hierarchical metamaterials

Wen

Podgornik

Strangi

et al. 2015

Rend. Fis. Acc. Lincei

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“…Recently, optical loss compensation has been experimentally observed in [5][6] by using Coumarin C500 and Rhodamine 6G fluorescent DMs inside the dielectric shells of randomly dispersed nanoshell particles. Note that fluorescent DMs have low emitting and absorption cross sections with respect to other active materials (e.g., QDs) and high concentrations of DMs may diminish the overall compensation due to fluorescence quenching and/or other non-radiative phenomena.…”

Section: Introduction and Statement Of The Problemmentioning

confidence: 99%

Metamaterials based on plasmonic nanoshells and loss-compensation using fluorescent dye molecules and quantum dots

Campione

Capolino

2012

SPIE Proceedings

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Composite materials based on plasmonic nanoparticles allow building metamaterials with very large effective permittivity (positive or negative) or ε-near-zero; moreover, if clustered or combined with other nanoparticles, it is possible to generate also effective magnetic permeability (positive or negative), and an ad-hoc design would result in the generation of double negative materials, and therefore backward wave propagation. However, losses are usually significant and affect the metamaterial performance. In this work, we report on the possibility of adopting fluorescent dye molecules or quantum dots, optically pumped, embedded into the dielectric cores of the employed nanoshell particles, and provide loss-compensation in ordered 3D periodic arrays at optical frequencies. Each spherical nanoshell is modeled as an electric dipole. We consider nanoparticles with gold and silver shells. We then find the modes with complex wavenumber in the metamaterial, and describe the composite material in terms of homogenized effective material parameters (refractive index and permittivity). Furthermore, in case of loss-compensation, we compare the results obtained from modal analysis with the ones computed by using two different homogenization methods: (i) Maxwell Garnett homogenization theory and (ii) Nicholson-Ross-Weir retrieval method. We show the design of two ε-near-zero metamaterials with low losses by simulating gain material made of dyes or quantum dots with realistic parameters. A brief discussion about the employment of the two kinds of active gain materials adopted here is given in the end.

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“…Systems comprising PNs and DSs have been under fervent studies in recent years. Beside the advantage in terms of field-enhancement applications, PNs-DSs combinations have been suggested also for loss compensation in metamaterials [7][8][9][10][11], because losses would otherwise hinder several of the promising features of metamaterials, such as subwavelength resolution and cloaking. This fact puts in evidence the importance of studying the interaction between DSs and PNs.…”

Section: Introductionmentioning

confidence: 99%

Critical excitation-rate enhancement of a dipolar scatterer close to a plasmonic nanosphere and importance of multipolar self-coupling

et al. 2014

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We develop an electrodynamic model based on dyadic Green's functions for analyzing the near-field interactions between a dipolar scatterer (DS) and a plasmonic nanosphere (PN) under external excitation, accounting for multipolar contributions in the evaluation of the scattered fields. In particular, we include all the radiative and nonradiative field interactions between the DS and the PN, particularly the physical mechanism of DS's self-coupling through the PN, which is either neglected or approximated in previous work. Our objective is to show under which conditions self-coupling is important for strong excitation-rate enhancement of the DS and provide a description of the system's properties. We analytically investigate the conditions under which the excitation rate of a DS, such as an organic dye or a quantum dot, is enhanced when located in close proximity to a PN. We show the existence of critical conditions in terms of polarizabilities and distances that lead to large enhancement based on self-coupling and how to predict it.

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Gain induced optical transparency in metamaterials

Cited by 47 publications

References 18 publications

Photonics and plasmonics go viral: self-assembly of hierarchical metamaterials

Photonics and plasmonics go viral: self-assembly of hierarchical metamaterials

Metamaterials based on plasmonic nanoshells and loss-compensation using fluorescent dye molecules and quantum dots

Critical excitation-rate enhancement of a dipolar scatterer close to a plasmonic nanosphere and importance of multipolar self-coupling

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