Resonant micro-photoluminescence and excitation spectra of GaAs/AlGaAs single quantum dots on a (411)A GaAs surface

2002 ◽  
Author(s):  
C. Watatani ◽  
K. Edamatsu ◽  
T. Itoh ◽  
S. Shimomura ◽  
S. Hiyamizu
Keyword(s):  
Quantum Dots ◽  
Gaas Surface ◽  
Single Quantum ◽  
Excitation Spectra ◽  
Single Quantum Dots

scholarly journals Room temperature excitation spectroscopy of single quantum dots

2011 ◽  
Vol 2 ◽  
pp. 516-524 ◽  
Author(s):  
Christian Blum ◽  
Frank Schleifenbaum ◽  
Martijn Stopel ◽  
Sébastien Peter ◽  
Marcus Sackrow ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Single Molecule ◽  
Room Temperature ◽  
Cdse Nanocrystals ◽  
Photoluminescence Excitation ◽  
Single Quantum ◽  
Excitation Spectra ◽  
Detection Scheme ◽  
Single Quantum Dots ◽  
The Individual

We report a single molecule detection scheme to investigate excitation spectra of single emitters at room temperature. We demonstrate the potential of single emitter photoluminescence excitation spectroscopy by recording excitation spectra of single CdSe nanocrystals over a wide spectral range of 100 nm. The spectra exhibit emission intermittency, characteristic of single emitters. We observe large variations in the spectra close to the band edge, which represent the individual heterogeneity of the observed quantum dots. We also find specific excitation wavelengths for which the single quantum dots analyzed show an increased propensity for a transition to a long-lived dark state. We expect that the additional capability of recording excitation spectra at room temperature from single emitters will enable insights into the photophysics of emitters that so far have remained inaccessible.

scholarly journals Electrochemically Controlled Deconjugation and Delivery of Single Quantum Dots into the Nucleus of Living Cells

Small ◽  
2010 ◽  
Vol 6 (19) ◽  
pp. 2109-2113 ◽  
Author(s):  
Kyungsuk Yum ◽  
Ning Wang ◽  
Min-Feng Yu
Keyword(s):  
Quantum Dots ◽  
Living Cells ◽  
Single Quantum ◽  
Single Quantum Dots

Towards a single-mode single photon source based on single quantum dots

2001 ◽  
Vol 94-95 ◽  
pp. 797-803 ◽  
Author(s):  
I. Robert ◽  
E. Moreau ◽  
J.M. Gérard ◽  
I. Abram
Keyword(s):  
Quantum Dots ◽  
Single Photon ◽  
Single Mode ◽  
Single Quantum ◽  
Single Photon Source ◽  
Single Quantum Dots ◽  
Photon Source

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.

Origins of nonzero multiple photon emission probability from single quantum dots embedded in photonic crystal nanocavities

2009 ◽  
Vol 94 (16) ◽  
pp. 163111 ◽  
Author(s):  
Hsiang-Szu Chang ◽  
Wen-Yen Chen ◽  
Tzu-Min Hsu ◽  
Tung-Po Hsieh ◽  
Jen-Inn Chyi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photonic Crystal ◽  
Photon Emission ◽  
Emission Probability ◽  
Single Quantum ◽  
Single Quantum Dots
Sign in / Sign up

Export Citation Format

Share Document