2011
DOI: 10.1103/physrevb.84.195302
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Single InAs1xPx/InP quantum dots as telecommunications-band photon sources

Abstract: The optical properties of single InAsP/InP quantum dots are investigated by spectrally-resolved and time-resolved photoluminescence measurements as a function of excitation power. In the shortwavelength region (below 1.45 µm), the spectra display sharp distinct peaks resulting from the discrete electron-hole states in the dots, while in the long-wavelength range (above 1.45 µm), these sharp peaks lie on a broad spectral background. In both regions, cascade emission observed by time-resolved photoluminescence c… Show more

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Cited by 28 publications
(17 citation statements)
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“…The s X ¼ 2:0 6 0:1 ns is longer than those obtained up to date for the InAsP/InP(001) (Ref. 22) or InAs/InP(001) (Refs. [23][24][25]28) QDs, which vary between 1.4 (Ref.…”
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confidence: 78%
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“…The s X ¼ 2:0 6 0:1 ns is longer than those obtained up to date for the InAsP/InP(001) (Ref. 22) or InAs/InP(001) (Refs. [23][24][25]28) QDs, which vary between 1.4 (Ref.…”
mentioning
confidence: 78%
“…18 Since the third telecommunication window centered around 1.55 lm guarantees the lowest transmission losses and highest transmission rates, a true single quantum photon emitter at that wavelength is highly sought for. 19 Among already demonstrated solutions towards achieving single quantum emitter at 1.55 lm including PbS nanocrystals, 20 metamorphic InAs/(In,Ga)As self-assembled QDs, 21 InAsP/InP QDs, 22 InAs/InP QDs, 18,[23][24][25][26] and combined techniques using standard InAs/GaAs QDs and frequency down conversion, 27 the idea of utilizing the InAs/InP(001) QDashes 28 is still original and competitive.…”
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confidence: 98%
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“…However, while the morphology and the electronic properties of InAsP have been extensively explored, [7][8][9][10][11][14][15][16][17]31 studies concerning optical characterization are limited. [14][15][16][17] Although there are a large number of optical studies involving quantum structures, 2,[18][19][20] alloy epilayers are more appropriate when considering fundamental optical transitions since confounding effects, such as quantum confinement and interface-related defects, are avoided.…”
Section: Introductionmentioning
confidence: 99%