Emission properties of single-photon sources based on CdTe/ZnTe quantum dots

18th Russian Youth Conference on Physics of Semiconductors and Nanostructures, Opto- and Nanoelectronics

Rakhlin, M.V.^1 ; Belyaev, K.G.^1 ; Sorokin, S.V.^1 ; Gronin, S.V.^1 ; Mukhin, I.S.^2,3 ; Shubina, T.V.^1 ; Ivanov, S.V.^1 ; Toropov, A.A.^1

Ioffe Institute, 26 Polytekhnicheskaya str., St. Petersburg

194021, Russia^1

St. Petersburg Academic University RAS, 8/3 Khlopina str., St. Petersburg

194021, Russia^2

ITMO University, 49 Kronverksky pr., St. Petersburg

197101, Russia^3

关键词: Autocorrelation functions;    Correlation measurement;    Emission properties;    Microphotoluminescence spectroscopy;    Non-classical lights;    Single photon emission;    Single-photon source;    Thermally activated;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/816/1/012025/pdf
DOI  :  10.1088/1742-6596/816/1/012025

来源: IOP

【 摘 要 】

We report on single photon emission from single CdTe/ZnTe quantum dots (QDs) grown by thermally-activated molecular beam epitaxy providing a reduced QD lateral density below 1010cm-2. For micro-photoluminescence spectroscopy studies and correlation measurements, the mesa structures of 200 and 500 nm diameters are fabricated by combination of electron-beam lithography and reactive plasma etching. Autocorrelation function of photons emitted from a single QD under cw excitation demonstrates antibunching with a value of g(2)(0) ∼ 0.3 that is a signature of non-classical light.