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Your search keyword '"Poole, Philip"' showing total 15 results
Start Over Author "Poole, Philip" Journal applied physics letters
15 results on '"Poole, Philip"'

2. Systematic study of the emission spectra of nanowire quantum dots

Author

Laferrière, Patrick, primary, Yeung, Edith, additional, Korkusinski, Marek, additional, Poole, Philip J., additional, Williams, Robin L., additional, Dalacu, Dan, additional, Manalo, Jacob, additional, Cygorek, Moritz, additional, Altintas, Abdulmenaf, additional, and Hawrylak, Pawel, additional

Published
2021
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6. Controlling the exciton energy of a nanowire quantum dot by strain fields.

Author

Yan Chen, Zadeh, Iman Esmaeil, Jöns, Klaus D., Fognini, Andreas, Reimer, Michael E., Jiaxiang Zhang, Dalacu, Dan, Poole, Philip J., Fei Ding, Zwiller, Val, and Schmidt, Oliver G.

Subjects
EXCITON theory, QUANTUM dots, STRAIN rate, PIEZOELECTRIC devices, OPTICAL quantum computing, QUANTUM information theory
Abstract

We present an experimental route to engineer the exciton energies of single quantum dots in nanowires. By integrating the nanowires onto a piezoelectric crystal, we controllably apply strain fields to the nanowire quantum dots. Consequently, the exciton energy of a single quantum dot in the nanowire is shifted by several meVs without degrading its optical intensity and single-photon purity. Second-order autocorrelation measurements are performed at different strain fields on the same nanowire quantum dot. The suppressed multi-photon events at zero time delay clearly verify that the quantum nature of single-photon emission is well preserved under external strain fields. The work presented here could facilitate on-chip optical quantum information processing with the nanowire based single photon emitters. [ABSTRACT FROM AUTHOR]

Published
2016
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15. InAs/InP quantum-dot pillar microcavities using SiO2/Ta2O5 Bragg reflectors with emission around 1.55 μm.

Author

Dalacu, Dan, Poitras, Daniel, Lefebvre, Jacques, Poole, Philip J., Aers, Geof C., and Williams, Robin L.

Subjects
INDIUM arsenide, QUANTUM dots, ARSENIDES, INDIUM compounds, SILICON oxide, LIGHTING reflectors
Abstract

We present optical characterization measurements from three-dimensional pillar microcavities comprising an InP spacer layer sandwiched between two SiO2/Ta2O5 Bragg reflectors. InAs quantum dots placed at the center of the InP spacer are used as broadband emitters. Emission into the lowest-order mode is observed at an energy of 820 meV in the wide-pillar limit, with shifts of approximately 30 meV in the ground state and more than 80 meV in higher-order modes for pillars of 2 μm diameter. Excellent agreement is found between the experimentally observed cavity mode energies as a function of pillar diameter and the predictions of guided-mode theory. Cavity quality factors in excess of 2200 are obtained for large diameter pillars, with a decrease to approximately 500 for pillars of 2 μm diameter. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2004
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