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Related papers: Excitonic switches at 100 K temperatures

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Engineering non-linear hybrid light-matter states in tailored optical lattices is a central research strategy for the simulation of complex Hamiltonians. Excitons in atomically thin crystals are an ideal active medium for such purposes,…

Excitons, Coulomb-bound electron-hole pairs, are the fundamental excitations governing the optoelectronic properties of semiconductors. While optical signatures of excitons have been studied extensively, experimental access to the excitonic…

Reconfigurability of photonic integrated circuits (PICs) has become increasingly important due to the growing demands for electronic-photonic systems on a chip driven by emerging applications, including neuromorphic computing, quantum…

Exciton-polaritons are quasiparticles consisting of a linear superposition of photonic and excitonic states, offering potential for nonlinear optical devices. The excitonic component of the polariton provides a finite Coulomb scattering…

Mesoscale and Nanoscale Physics · Physics 2017-03-20 Lucas C. Flatten , David M. Coles , Zhengyu He , David. G. Lidzey , Robert A. Taylor , Jamie H. Warner , Jason M. Smith

We demonstrate a silicon-based high frequency nanomechanical device capable of switching controllably between two states at room temperature. The device uses a nanomechanical resonator with two distinct states in the hysteretic nonlinear…

Mesoscale and Nanoscale Physics · Physics 2009-09-30 Diego N. Guerra , Matthias Imboden , Pritiraj Mohanty

With the ever increasing power dissipation in electrical devices, new thermal management solutions are in high demand to maintain an optimal operating temperature and efficient performance. In particular, recently developed…

Applied Physics · Physics 2018-03-29 C. Rodrigues , M. M. Dias , L. Martins , J. P. Araujo , J. C. R. E Oliveira , A. M. Pereira , J. Ventura

The realization of semiconductor structures with stable excitons at room temperature is crucial for the development of excitonics and polaritonics. Quantum confinement has commonly been employed for enhancing excitonic effects in…

We present a microscopic model for exciton-induced transparency (ExIT) in a hybrid system comprised of an emitter resonantly coupled to a surface plasmon in a metal-dielectric structure. We obtain an effective optical polarizability of such…

Mesoscale and Nanoscale Physics · Physics 2020-11-18 Tigran V. Shahbazyan

The effects of the electron-phonon interaction on optical excitations can be understood in terms of exciton-phonon coupling, and require a careful treatment in low-dimensional materials with strongly bound excitons or strong electron-hole…

Materials Science · Physics 2022-02-17 Gabriel Antonius , Steven G. Louie

Polariton emission from optical cavities integrated with various luminophores has been extensively studied recently due to the wide variety of possible applications in photonics, particularly promising in terms of fabrication of…

Mesoscale and Nanoscale Physics · Physics 2021-07-28 Dmitriy Dovzhenko , Maksim Lednev , Konstantin Mochalov , Ivan Vaskan , Pavel Samokhvalov , Yury Rakovich , Igor Nabiev

Compact electro-optic (EO) modulators with large extinction ratios, low-switching energies, and high operation speeds are desirable for integrated photonic and linear optical computing. Traditional 3D semiconductors and dielectrics are…

Optics · Physics 2023-01-26 Ruoyu Yuan , Jason Lynch , Deep Jariwala

The optical properties of ZnO quantum wells, which have potential application of short-wavelength semiconductor laser utilizing a high-density excitonic effect, were investigated. Stimulated emission of excitons was observed at temperatures…

Materials Science · Physics 2007-05-23 T. Makino , Y. Segawa , M. Kawasaki , H. Koinuma

There have been extensive experimental search for possible exciton superfluid in semiconductor electron-hole bilayer systems below liquid Helium temperature. However, exciton superfluid are meta-stable and will eventually decay through…

Mesoscale and Nanoscale Physics · Physics 2009-10-27 Jinwu Ye , T. Shi , Longhua Jiang

Strong light-matter interaction enriches topological photonics by dressing light with matter, which provides the possibility to realize tuneable topological devices with immunity to defects. Topological exciton polaritons, half-light…

Optics · Physics 2020-12-11 Rui Su , Sanjib Ghosh , Timothy C. H. Liew , Qihua Xiong

Silicon photonic devices fundamental to high-density wavelength-division multiplexed (DWDM) optical links and photonic switching networks, such as resonant modulators and Mach-Zehnder interferometers (MZIs), are highly sensitive to…

Layered hybrid perovskites containing larger organic cations have demonstrated superior environmental stability, but the presence of these insulating spacers also strengthens the exciton binding energy, which contributes to reduced carrier…

We propose here a new platform for a realization of novel nonvolatile optical switching devices that takes an advantage of high field confinement provided by plasmonics and multi-state programming capabilities of chalcogenide phase change…

Optics · Physics 2021-12-20 Jacek Gosciniak

The paper presents numerical results on an innovative concept of an efficient, site-specific cooling technology for microprocessor hot spots using Alternating Current Electrothermal Flow (ACET). ACET deploys an electrokinetic transport…

Applied Physics · Physics 2018-10-16 Golak Kunti , Jayabrata Dhar , Anandaroop Bhattacharya , Suman Chakraborty

Cavity-integrated transition metal dichalcogenide excitons have recently emerged as a promising platform to study strong light-matter interactions and related cavity quantum electrodynamics phenomena. While this exciton-cavity system is…

Applied Physics · Physics 2020-03-10 David Rosser , Taylor Fryett , Albert Ryou , Abhi Saxena , Arka Majumdar

Thermionic converters generate electricity from thermal energy in a power cycle based on vacuum emission of electrons. While thermodynamically efficient, practical implementations are limited by the extreme temperatures required for…

Applied Physics · Physics 2019-06-14 Nicki Hogan , Shengxiang Wu , Matthew Sheldon