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Journal ArticleDOI

Deep-Ultraviolet Hyperbolic Metacavity Laser.

TLDR
The hyperbolic metacavity laser shows a clear clamping of spontaneous emission above the threshold, which demonstrates a near complete radiation coupling of the MQW with the metac Cavity, which can greatly simplify the requirements of plasmonic nanolaser with a long plAsmonic structure.
Abstract
Given the high demand for miniaturized optoelectronic circuits, plasmonic devices with the capability of generating coherent radiation at deep subwavelength scales have attracted great interest for diverse applications such as nanoantennas, single photon sources, and nanosensors. However, the design of such lasing devices remains a challenging issue because of the long structure requirements for producing strong radiation feedback. Here, a plasmonic laser made by using a nanoscale hyperbolic metamaterial cube, called hyperbolic metacavity, on a multiple quantum-well (MQW), deep-ultraviolet emitter is presented. The specifically designed metacavity merges plasmon resonant modes within the cube and provides a unique resonant radiation feedback to the MQW. This unique plasmon field allows the dipoles of the MQW with various orientations into radiative emission, achieving enhancement of spontaneous emission rate by a factor of 33 and of quantum efficiency by a factor of 2.5, which is beneficial for coherent laser action. The hyperbolic metacavity laser shows a clear clamping of spontaneous emission above the threshold, which demonstrates a near complete radiation coupling of the MQW with the metacavity. This approach shown here can greatly simplify the requirements of plasmonic nanolaser with a long plasmonic structure, and the metacavity effect can be extended to many other material systems.

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Citations
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Journal ArticleDOI

Applications of nanolasers.

TL;DR: The fundamental advantages of nanolasers and the engineering challenges for their utilization in several practical applications are highlighted and the scientific and engineering challenges that remain are highlighted.
Journal ArticleDOI

Ten years of spasers and plasmonic nanolasers.

TL;DR: An international team of researchers has conducted a comprehensive review of the evolution spasers, from their first experimental demonstrations through to technological advances in the field and future research and new applications.
Journal ArticleDOI

Hyperbolic metamaterials: From dispersion manipulation to applications

TL;DR: Hyperbolic metamaterials (HMMs) as mentioned in this paper are an important class of artificial anisotropic materials with hyperbolic IFCs, which have been intensively investigated.
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

Metalenses: Advances and Applications

TL;DR: In this article, a review of the progress in the development of metalenses is presented, where the working mechanisms of chromatic and achromatic metalenses are introduced. And the design principle of integrated-resonant units for correcting chromatic aberration of a metalens is discussed.
References
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Journal ArticleDOI

Room-temperature ultraviolet nanowire nanolasers

TL;DR: Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated and self-organized, <0001> oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport and condensation process.
Journal ArticleDOI

Stimulated Optical Radiation in Ruby

TL;DR: Schawlow and Townes as discussed by the authors proposed a technique for the generation of very monochromatic radiation in the infra-red optical region of the spectrum using an alkali vapour as the active medium.
Journal Article

Stimulated optical radiation in ruby

T. H. Maiman
TL;DR: Schawlow and Townes as discussed by the authors proposed a technique for the generation of very monochromatic radiation in the infra-red optical region of the spectrum using an alkali vapour as the active medium.
PatentDOI

Plasmon lasers at deep subwavelength scale

TL;DR: Hybrid plasmonic waveguides as discussed by the authors employ a high-gain semiconductor nanostructure functioning as a gain medium that is separated from a metal substrate surface by a nanoscale thickness thick low-index gap.
Journal ArticleDOI

Demonstration of a spaser-based nanolaser

TL;DR: It is shown that 44-nm-diameter nanoparticles with a gold core and dye-doped silica shell allow us to completely overcome the loss of localized surface plasmons by gain and realize a spaser, and that outcoupling of surface plasmon oscillations to photonic modes at a wavelength of 531 nm makes this system the smallest nanolaser reported to date—and to the authors' knowledge the first operating at visible wavelengths.
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