Broadband room temperature strong coupling between quantum dots and metamaterials

Nanoscale ◽  
2017 ◽  
Vol 9 (32) ◽  
pp. 11418-11423 ◽  
Author(s):  
Chaitanya Indukuri ◽  
Ravindra Kumar Yadav ◽  
J. K. Basu
Keyword(s):  
Quantum Dots ◽  
Strong Coupling ◽  
Room Temperature ◽  
Local Density ◽  
Hyperbolic Metamaterials

Super-radiance and enhanced local density of optical states induced strong coupling between quantum dots and hyperbolic metamaterials.

scholarly journals Strong coupling of single quantum dots with low-refractive-index/high-refractive-index materials at room temperature

2020 ◽  
Vol 6 (47) ◽  
pp. eabb3095
Author(s):  
Xingsheng Xu ◽  
Siyue Jin
Keyword(s):  
Quantum Dots ◽  
Refractive Index ◽  
Strong Coupling ◽  
Room Temperature ◽  
High Refractive Index ◽  
Colloidal Quantum Dots ◽  
Rabi Splitting ◽  
Pl Spectra ◽  
Dielectric Cavity ◽  
Low Refractive Index

Strong coupling between a cavity and transition dipole moments in emitters leads to vacuum Rabi splitting. Researchers have not reported strong coupling between a single emitter and a dielectric cavity at room temperature until now. In this study, we investigated the photoluminescence (PL) spectra of colloidal quantum dots on the surface of a SiO2/Si material at various collection angles at room temperature. We measured the corresponding reflection spectra for the SiO2/Si material and compared them with the PL spectra. We observed PL spectral splitting and regarded it as strong coupling between colloidal quantum dots and the SiO2/Si material. Upper polaritons and lower polaritons exhibited anticrossing behavior. We observed Rabi splitting from single-photon emission in the dielectric cavity at room temperature. Through analysis, we attributed the Rabi splitting to strong coupling between quantum dots and bound states in the continuum in the low-refractive-index/high-refractive-index hybrid material.

Room Temperature Weak-to-Strong Coupling and the Emergence of Collective Emission from Quantum Dots Coupled to Plasmonic Arrays

ACS Nano ◽  
2020 ◽  
Vol 14 (6) ◽  
pp. 7347-7357 ◽  
Author(s):  
Ravindra Kumar Yadav ◽  
Marc R. Bourgeois ◽  
Charles Cherqui ◽  
Xitlali G. Juarez ◽  
Weijia Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Strong Coupling ◽  
Room Temperature ◽  
Collective Emission

Strong Coupling: Polariton Bose Condensation

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Dissipative System ◽  
Bose Condensation ◽  
Einstein Condensation ◽  
Strong Coupling Regime ◽  
Stimulated Scattering ◽  
Exciton Polaritons ◽  
Bose Einstein

In this Chapter we address the physics of Bose-Einstein condensation and its implications to a driven-dissipative system such as the polariton laser. We discuss the dynamics of exciton-polaritons non-resonantly pumped within a microcavity in the strong coupling regime. It is shown how the stimulated scattering of exciton-polaritons leads to formation of bosonic condensates that may be stable at elevated temperatures, including room temperature.

Room temperature intraband Raman emission and ultrafast carrier relaxation in GaN/AlN quantum dots

2009 ◽  
Vol 6 (S2) ◽  
pp. S650-S653
Author(s):  
L. Nevou ◽  
J. Mangeney ◽  
M. Tchernycheva ◽  
F. H. Julien ◽  
F. Guillot ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Carrier Relaxation ◽  
Ultrafast Carrier

InAs/InGaAs quantum dots confined by InAlAs barriers for enhanced room temperature light emission: Photoelectric properties and deep levels

2021 ◽  
Vol 238 ◽  
pp. 111514
Author(s):  
Sergii Golovynskyi ◽  
Oleksandr I. Datsenko ◽  
Luca Seravalli ◽  
Giovanna Trevisi ◽  
Paola Frigeri ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Light Emission ◽  
Deep Levels ◽  
Photoelectric Properties

Room temperature synthesis of Sn2+ doped highly luminescent CsPbBr3 quantum dots for high CRI white light-emitting diodes

Nanoscale ◽  
2021 ◽  
Author(s):  
Dongdong Yan ◽  
Qionghua Mo ◽  
Shuangyi Zhao ◽  
Wensi Cai ◽  
Zhigang Zang
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
White Light ◽  
Room Temperature ◽  
Temperature Synthesis ◽  
Light Emitting ◽  
Photoluminescence Quantum Yield ◽  
Hot Injection ◽  
White Light Emitting Diodes ◽  
Cspbbr3 Quantum Dots

With a high photoluminescence quantum yield (PLQY) being able to exceed 90% for those prepared by hot injection method, CsPbBr3 quantum dots (QDs) have attracted intensive attentions for white light-emitting...

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