Controlling spontaneous emission with metamaterials

Noginov, M. A.; Li, H.; Barnakov, Yu. A.; Dryden, Daniel M.; Nataraj, G.; Zhu, G.; Bonner, Carl E.; Mayy, M.; Jacob, Zubin; Narimanov, Evgenii E.

doi:10.1364/ol.35.001863

Cited by 356 publications

(310 citation statements)

References 9 publications

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“…In contrast to previous work investigating PL enhancement in single nanoparticles and nanoantennas 3,40,41 or in Fano-type 30,42,43 and hyperbolic metamaterials 31,32 , our SRR metamaterial supports both electric and magnetic modes that are spectrally matched to the emission of semiconductor QDs at around l QD ¼ 800 nm wavelength. Since both modes in our metamaterial can be engineered independently from each other, our QD metamaterial offers new opportunities to tailor the spontaneous emission of quantum emitters into two independent radiative decay channels.…”

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confidence: 66%

“…An important step in controlling the process of loss compensation is the study of coupling of quantum emitters such as quantum dots (QDs) with metamaterials. In such structures, the hybridization of QDs with electric resonances of a metamaterial can lead to photoluminescence (PL) enhancement and modification of the PL properties that can be controlled by the metamaterial design 30,31 . Topological transitions in hyperbolic metamaterials 32 have also shown an important avenue to alter the photonic density of states by changing the isofrequency surfaces via plasmonic resonances.…”

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confidence: 99%

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Dual-channel spontaneous emission of quantum dots in magnetic metamaterials

et al. 2013

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Metamaterials, artificial electromagnetic media realized by subwavelength nano-structuring, have become a paradigm for engineering electromagnetic space, allowing for independent control of both electric and magnetic responses of the material. Whereas most metamaterials studied so far are limited to passive structures, the need for active metamaterials is rapidly growing. However, the fundamental question on how the energy of emitters is distributed between both (electric and magnetic) interaction channels of the metamaterial still remains open. Here we study simultaneous spontaneous emission of quantum dots into both of these channels and define the control parameters for tailoring the quantum-dot coupling to metamaterials. By superimposing two orthogonal modes of equal strength at the wavelength of quantum-dot photoluminescence, we demonstrate a sharp difference in their interaction with the magnetic and electric metamaterial modes. Our observations reveal the importance of mode engineering for spontaneous emission control in metamaterials, paving a way towards loss-compensated metamaterials and metamaterial nanolasers.

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confidence: 99%

Dual-channel spontaneous emission of quantum dots in magnetic metamaterials

et al. 2013

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“…10(f)). Other proposals bridging metamaterials with quantum mechanics include modifying the emission rate of an emitter adjacent to carefully designed metamaterials with large photon densities of state, 135,136 as well as exploring the possibility of repulsive Casimir forces that originate from the quantum zero-point oscillation of EM waves. [137][138][139][140][141][142] …”

Section: Future Directionsmentioning

confidence: 99%

Metamaterials: a new frontier of science and technology

Liu¹,

2011

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Metamaterials, artificial composite structures with exotic material properties, have emerged as a new frontier of science involving physics, material science, engineering and chemistry. This critical review focuses on the fundamentals, recent progresses and future directions in the research of electromagnetic metamaterials. An introduction to metamaterials followed by a detailed elaboration on how to design unprecedented electromagnetic properties of metamaterials is presented. A number of intriguing phenomena and applications associated with metamaterials are discussed, including negative refraction, sub-diffraction-limited imaging, strong optical activities in chiral metamaterials, interaction of meta-atoms and transformation optics. Finally, we offer an outlook on future directions of metamaterials research including but not limited to three-dimensional optical metamaterials, nonlinear metamaterials and ''quantum'' perspectives of metamaterials (142 references).

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“…In the case of hyperbolic metamaterials, the components of dielectric permittivity satisfy the following condition: e > 40, e || o0 and the signs of the projections of S t and k t on to the x axis are opposite. As a result, such structures support negative refraction and can be used for focusing and steering electromagnetic radiation [7][8][9][10][11][12][13][14][15] . Conventionally, hyperbolic metamaterials are realized using either metal/dielectric multilayers or an array of metal wires in a dielectric matrix [10][11][12][13][14][15] .…”

Section: Resultsmentioning

confidence: 99%

Virtual hyperbolic metamaterials for manipulating radar signals in air

2013

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Microwave beam transmission and manipulation in the atmosphere is an important but difficult task. One of the major challenges in transmitting and routing microwaves in air is unavoidable divergence because of diffraction. Here we introduce and design virtual hyperbolic metamaterials (VHMMs) formed by an array of plasma channels in air as a result of self-focusing of an intense laser pulse, and show that such structure can be used to manipulate microwave beams in air. Hyperbolic, or indefinite, metamaterials are photonic structures that possess permittivity and/or permeability tensor elements of opposite sign with respect to one another along principal axes, resulting in a strong anisotropy. Our proofof-concept results confirm that the proposed virtual hyperbolic metamaterial structure can be used for efficient beam collimation and for guiding radar signals around obstacles, opening a new paradigm for electromagnetic wave manipulation in air.

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Controlling spontaneous emission with metamaterials

Cited by 356 publications

References 9 publications

Dual-channel spontaneous emission of quantum dots in magnetic metamaterials

Dual-channel spontaneous emission of quantum dots in magnetic metamaterials

Metamaterials: a new frontier of science and technology

Virtual hyperbolic metamaterials for manipulating radar signals in air

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