Studies on the Radiation Properties of Radiative shock in Xenon

Multi-core processors are likely to be a point of no return to meet the unending demand for increasing computational power. Nevertheless, the physical interconnection of many cores might currently represent the bottleneck toward kilo-core architectures. Optical wireless networks on-chip are therefore being considered as promising solutions to overcome the technological limits of wired interconnects. In this work, the spatial properties of the on-chip wireless channel are investigated through a ray tracing approach applied to a layered representation of the chip structure, highlighting the relationship between path loss, antenna positions and radiation properties.

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Impact of formation process on the radiation properties of single-photon sources generated on SiC crystal surfaces

Applied Physics Letters ◽

10.1063/5.0048772 ◽

2021 ◽

Vol 118 (20) ◽

pp. 204005

Author(s):

Yasuto Hijikata ◽

Shota Komori ◽

Shunsuke Otojima ◽

Yu-Ichiro Matsushita ◽

Takeshi Ohshima

Keyword(s):

Formation Process ◽

Single Photon ◽

Crystal Surfaces ◽

Radiation Properties ◽

Photon Sources

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Effects of gap thickness and emitter location on the photoluminescence enhancement of monolayer MoS2 in a plasmonic nanoparticle-film coupled system

Nanophotonics ◽

10.1515/nanoph-2020-0178 ◽

2020 ◽

Vol 9 (7) ◽

pp. 2097-2105

Author(s):

Xiaozhuo Qi ◽

Tsz Wing Lo ◽

Di Liu ◽

Lantian Feng ◽

Yang Chen ◽

...

Keyword(s):

Near Field ◽

Central Area ◽

Field Enhancement ◽

Coupled System ◽

Film Structure ◽

Plasmonic Nanoparticle ◽

Emitter Location ◽

Radiation Properties ◽

Radiation Enhancement ◽

Quantum Emitters

AbstractPlasmonic nanocavities comprised of metal film-coupled nanoparticles have emerged as a versatile nanophotonic platform benefiting from their ultrasmall mode volume and large Purcell factors. In the weak-coupling regime, the particle-film gap thickness affects the photoluminescence (PL) of quantum emitters sandwiched therein. Here, we investigated the Purcell effect-enhanced PL of monolayer MoS2 inserted in the gap of a gold nanoparticle (AuNP)–alumina (Al2O3)–gold film (Au Film) structure. Under confocal illumination by a 532 nm CW laser, we observed a 7-fold PL peak intensity enhancement for the cavity-sandwiched MoS2 at an optimal Al2O3 thickness of 5 nm, corresponding to a local PL enhancement of ∼350 by normalizing the actual illumination area to the cavity’s effective near-field enhancement area. Full-wave simulations reveal a counterintuitive fact that radiation enhancement comes from the non-central area of the cavity rather than the cavity center. By scanning an electric dipole across the nanocavity, we obtained an average radiation enhancement factor of about 65 for an Al2O3 spacer thickness of 4 nm, agreeing well with the experimental thickness and indicating further PL enhancement optimization. Our results indicate the importance of configuration optimization, emitter location and excitation condition when using such plasmonic nanocavities to modulate the radiation properties of quantum emitters.

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