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.

Однофотонное излучение одиночной квантовой точки CdTeSe/ZnS в ближнем инфракрасном диапазоне при комнатной температуре

2021 ◽  
Vol 47 (21) ◽  
pp. 3
Author(s):  
Siyue Jin ◽  
Xingsheng Xu
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Auger Recombination ◽  
Single Photon ◽  
Irradiation Time ◽  
Colloidal Quantum Dots ◽  
Single Quantum ◽  
Illumination Time ◽  
Single Quantum Dots ◽  
Single Quantum Dot

In this study, the photostability of a CdTeSe/ZnS colloidal single photon emitter with a wavelength of 800nm at room temperature was investigated. The second-order correlation function was much smaller than 0.1, which proved that the CdTeSe/ZnS single quantum dot at 800nm is a highly pure single-photon emitter. The effects of the irradiation time on the optical properties from single quantum dots were analyzed. As the illumination time increased, the emission of biexciton and multiexciton in the colloidal quantum dots increased, and the occurrence of Auger recombination increased.

Electrically driven light emission from single colloidal quantum dots at room temperature

2007 ◽  
Vol 90 (2) ◽  
pp. 023110 ◽  
Author(s):  
Hao Huang ◽  
August Dorn ◽  
Vladimir Bulovic ◽  
Moungi G. Bawendi
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Light Emission ◽  
Colloidal Quantum Dots

Photochemical Lamination of Low Refractive Index Transparent SiO2 Film at Room Temperature for Antireflection Coating

2002 ◽  
Vol 750 ◽  
Author(s):  
Y. Ogawa ◽  
M. Murahara
Keyword(s):  
Refractive Index ◽  
Room Temperature ◽  
Antireflection Coating ◽  
Sio2 Film ◽  
Fused Silica ◽  
Photochemical Reactions ◽  
Atom Density ◽  
Reflection Of Light ◽  
Fused Silica Glass ◽  
Low Refractive Index

ABSTRACTA transparent low refractive index SiO2 film laminated on a glass substrate at room temperature by photochemical reactions with the Xe2* excimer lamp (172nm). This SiO2 film grown on the fused silica glass was proved to avoid reflection of light.A refractive index of the SiO2 film was 1.36. After annealing the film for one hour at 200 degrees centigrade, the refractive index increased to 1.42. The refractive index increased as the F atom density in the SiO 2 film decreased.

scholarly journals Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature

2019 ◽  
Vol 2 (5) ◽  
pp. 19000801-19000809 ◽  
Author(s):  
Bowen Li ◽  
◽  
Shuai Zu ◽  
Zhepeng Zhang ◽  
Liheng Zheng ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Room Temperature ◽  
Rabi Splitting ◽  
Optical Microcavity

The measurement of large optic axial angles with the universal stage

1966 ◽  
Vol 35 (273) ◽  
pp. 763-769
Author(s):  
M. Munro
Keyword(s):  
Refractive Index ◽  
Rapid Method ◽  
High Refractive Index ◽  
Optic Axis ◽  
Relative Speed ◽  
Accuracy And Precision ◽  
Direct Location ◽  
Speed Accuracy ◽  
Universal Stage ◽  
Low Refractive Index

SummaryA comparison has been made of the relative speed, accuracy, and precision of several methods of measuring large optic axial angles with the universal stage. It is concluded that a method based on the direct location of a single optic axis and the application of the Biot-Fresnel law will frequently be the most satisfactory when only the standard, low refractive index centre plate for the stage is available. If a centre plate of high refractive index is employed, however, good results can normally be obtained by using the more rapid method based on the direct location of both optic axes.

Preparation of CdS Colloidal Quantum Dots and PL Spectra

2016 ◽  
Vol 22 (1) ◽  
pp. 19-24
Author(s):  
Kwon Taek Lim ◽  
◽  
Yeon-Tae Jeong ◽  
Hoon Heo
Keyword(s):  
Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Pl Spectra

Polarized Single Photons from Colloidal Quantum Dots in Chiral Microcavities at Room Temperature

2009 ◽  
Author(s):  
Luke J. Bissell ◽  
Svetlana G. Lukishova ◽  
Roger A. Smith ◽  
Mayukh Lahiri ◽  
Carlos R. Stroud, Jr. ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Colloidal Quantum Dots ◽  
Single Photons
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