scispace - formally typeset
Open AccessJournal ArticleDOI

Enhanced spontaneous emission inside hyperbolic metamaterials.

TLDR
To extract the plasmonic modes of the structure into the far field, two types of 1D grating with triangular and rectangular profile are implemented, obtaining a 10-fold radiative enhancement at visible frequencies.
Abstract
Hyperbolic metamaterials can enhance spontaneous emission, but the radiation-matter coupling is not optimized if the light source is placed outside such media. We demonstrate a 3-fold improvement of the Purcell factor over its outer value and a significant enlargement in bandwidth by including the emitter within a Si/Ag periodic multilayer metamaterial. To extract the plasmonic modes of the structure into the far field we implement two types of 1D grating with triangular and rectangular profile, obtaining a 10-fold radiative enhancement at visible frequencies.

read more

Citations
More filters
Journal ArticleDOI

Hyperbolic metamaterials and their applications

TL;DR: A comprehensive and updated picture of the field of hyperbolic metamaterials, from the foundations to the most recent progresses and future perspectives is provided in this article, where the topics discussed embrace theoretical aspects, practical realization and key challenges for applications such as imaging, spontaneous emission engineering, thermal, active and tunable hyperbola media.
Journal ArticleDOI

Hyperbolic metamaterials: fusing artificial structures to natural 2D materials

TL;DR: Hyperbolic metamaterials have an extremely high anisotropy with a hyperbolic dispersion relation and exhibit a high density of states which have been exploited in various applications, such as super-resolution imaging, negative refraction, and enhanced emission control as mentioned in this paper .
Journal ArticleDOI

Large spontaneous emission rate enhancement in grating coupled hyperbolic metamaterials

TL;DR: The large spontaneous emission rate enhancement of an organic dye placed in a grating coupled hyperbolic metamaterial (GCHMM) is demonstrated and it is confirmed that the observed enhancement of GCHMM is due to the outcoupling of non-radiative plasmonic modes as well as strong plAsmon-exciton coupling in HMM via diffracting grating.
References
More filters
Journal ArticleDOI

Optical Constants of the Noble Metals

TL;DR: In this paper, the optical constants for the noble metals (copper, silver, and gold) from reflection and transmission measurements on vacuum-evaporated thin films at room temperature, in the spectral range 0.5-6.5 eV.
Book

Plasmonics: Fundamentals and Applications

TL;DR: In this paper, the authors discuss the role of surface plasmon polaritons at metal/insulator interfaces and their application in the propagation of surfaceplasmon waveguides.
Book

Principles of nano-optics

TL;DR: In this paper, the authors proposed a method for propagating and focusing of optical fields in a nano-optics environment using near-field optical probes and probe-sample distance control.
Journal ArticleDOI

Dielectric functions and optical parameters of Si, Ge, GaP, GaAs, GaSb, InP, InAs, and InSb from 1.5 to 6.0 eV

TL;DR: In this paper, the pseudodielectric functions of spectroscopic ellipsometry and refractive indices were measured using the real-time capability of the spectro-optical ellipsometer.
Related Papers (5)