Enhanced spontaneous emission inside hyperbolic metamaterials

Ferrari, Lorenzo; Lu, Dylan; Lepage, Dominic; Liu, Zhaowei

doi:10.1364/oe.22.004301

Cited by 80 publications

(67 citation statements)

References 23 publications

(22 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The similarity comes from the fact that the volume electromagnetic mode in HM is actually the superposition of interacting plasmon modes localized at the nearby metal-dielectric interfaces. The collective character of the modes results in a hybridized broadband response [8,9].…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Broadband Light Absorber Based on Nonuniform Hyperbolic Metamaterial Film

Zharova

Zharov

2018

Advances in Condensed Matter Physics

View full text Add to dashboard Cite

We develop a concept of highly efficient broadband light absorber based on nonuniform hyperbolic metamaterial. We suggest a gradual bending of the anisotropy axis inside the metamaterial that results in spatial shift of the area of resonant absorption depending on the incidence angle. In this resonant region the wavevector of light is parallel to the generatrix of resonant cone and the radiation losses are maximal because of extremely high value of refraction index. Changing the radiation frequency also shifts the spatial position of the resonant region so that high level of absorption may be achieved in wide frequency range. Using the model of nanowire medium (silver wires in silica host) we predict that 200 nm film of this hyperbolic metamaterial allows reaching almost total absorption of radiation throughout the visible band.

show abstract

Section: Introductionmentioning

confidence: 99%

Highly Efficient Broadband Light Absorber Based on Nonuniform Hyperbolic Metamaterial Film

Zharova

Zharov

2018

Advances in Condensed Matter Physics

View full text Add to dashboard Cite

show abstract

“…In particular, multilayered hyperbolic metamaterials have been recently reported as a novel approach for enhancing SER due to the infinite local density of state (LDOS) provided by their theoretically unlimited dispersion volume [13]. However, this approach is practically limited by the restricted thinness of the layers, causing Bragg scattering dispersion restriction, and requires complex designs, such as for instance grating structures [14,15], to transform intrinsic lateral emission into vertical radiation for high LEE.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous enhancement of light extraction and spontaneous emission using a partially reflecting metasurface cavity

Chen¹,

Achouri²,

Kallos³

et al. 2017

Phys. Rev. A

View full text Add to dashboard Cite

The enhancement of the power conversion efficiency (PCE), and subsequent reduction of cost, of light emitting diodes (LEDs) is of crucial importance in the current lightening market. For this reason, we propose here a PCE-enhanced LED architecture, based on a partially-reflecting metasurface cavity (PRMC) structure. This structure simultaneously enhances the light extraction efficiency (LEE) and the spontaneous emission rate (SER) of the LED by enforcing the emitted light to radiate perpendicularly to the device, so as to suppress wave trapping and enhance field confinement near the emitter, while ensuring cavity resonance matching and maximal constructive field interference. The PRMC structure is designed using a recent surface susceptibility metasurface synthesis technique. A PRMC blue LED design is presented and demonstrated by full-wave simulation to provide LEE and SER enhancements by factors 4.0 and 1.9, respectively, which correspond to PCE enhancement factors of 6.2, 5.2 and 4.5 for IQEs of 0.25, 0.5 and 0.75, respectively, suggesting that the PRMC concept has a promising potential in LED technology. 7, 948-957 (2013). 14. D. Lu, J. J. Kan, E. E. Fullerton, and Z. Liu, "Enhancing spontaneous emission rates of molecules using nanopatterned multilayer hyperbolic metamaterials," Nat. Nanotechnol. 9, 48-53 (2014). 15. L. Ferrari, D. Lu, D. Lepage, and Z. Liu, "Enhanced spontaneous emission inside hyperbolic metamaterials,"

show abstract

“…An important class of such complex media are optical metamaterials consisting of nontrivial nanoscatterers. While direct numerical simulations can be used to model dipole emission in these materials [27][28][29], the simulations become * markus.nyman@aalto.fi † andriy.shevchenko@aalto.fi computationally very intensive and time consuming as the entire nanostructure must be modeled, and the physical picture of metamaterials as effectively homogeneous media [30] is lost. Hence, the prediction, design, and optimization of emission in spatially dispersive materials remain difficult.…”

Section: Introductionmentioning

confidence: 99%

Generation of light in spatially dispersive materials

et al. 2017

View full text Add to dashboard Cite

Spatial dispersion makes optical properties of materials depend on the direction of light propagation. The effect can be applied to control optical emission by sources embedded in such media. We propose a method to determine the radiation pattern of essentially any emitter located in a general spatially dispersive and optically anisotropic medium. The method is based on a decomposition of the source into waves of electric current, each creating optical plane waves whose properties are determined by the wave parameters, the refractive index, and impedance. The method is computationally fast and very accurate even in strongly spatially dispersive plasmonic metamaterials. In particular, we observe large modification of dipole emission in a bifacial and a diffraction-compensating metamaterial. The method is applicable to a large variety of nanostructured materials and, therefore, we believe that it can find numerous applications in nano-optics.

show abstract

Enhanced spontaneous emission inside hyperbolic metamaterials

Cited by 80 publications

References 23 publications

Highly Efficient Broadband Light Absorber Based on Nonuniform Hyperbolic Metamaterial Film

Highly Efficient Broadband Light Absorber Based on Nonuniform Hyperbolic Metamaterial Film

Simultaneous enhancement of light extraction and spontaneous emission using a partially reflecting metasurface cavity

Generation of light in spatially dispersive materials

Contact Info

Product

Resources

About