KŘÁPEK, Vlastimil, Petr KLENOVSKÝ and Tomáš ŠIKOLA. Excitonic fine structure splitting in type-II quantum dots. Physical Review B. COLLEGE PK: The American Physical Society, 2015, vol. 92, No 19, p. "nestránkováno", 9 pp. ISSN 1098-0121. Available from: https://dx.doi.org/10.1103/PhysRevB.92.195430. |
Other formats:
BibTeX
LaTeX
RIS
@article{1331176, author = {Křápek, Vlastimil and Klenovský, Petr and Šikola, Tomáš}, article_location = {COLLEGE PK}, article_number = {19}, doi = {http://dx.doi.org/10.1103/PhysRevB.92.195430}, keywords = {POLARIZATION-ENTANGLED PHOTONS; WAVELENGTH LIGHT-EMISSION; STRAIN-REDUCING LAYER; OPTICAL-PROPERTIES; MU-M; GAASSB; NANOCRYSTALS; PHOTOLUMINESCENCE; LOCALIZATION; RELAXATION}, language = {eng}, issn = {1098-0121}, journal = {Physical Review B}, title = {Excitonic fine structure splitting in type-II quantum dots}, url = {http://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.195430}, volume = {92}, year = {2015} }
TY - JOUR ID - 1331176 AU - Křápek, Vlastimil - Klenovský, Petr - Šikola, Tomáš PY - 2015 TI - Excitonic fine structure splitting in type-II quantum dots JF - Physical Review B VL - 92 IS - 19 SP - "nestránkováno" EP - "nestránkováno" PB - The American Physical Society SN - 10980121 KW - POLARIZATION-ENTANGLED PHOTONS KW - WAVELENGTH LIGHT-EMISSION KW - STRAIN-REDUCING LAYER KW - OPTICAL-PROPERTIES KW - MU-M KW - GAASSB KW - NANOCRYSTALS KW - PHOTOLUMINESCENCE KW - LOCALIZATION KW - RELAXATION UR - http://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.195430 N2 - Excitonic fine structure splitting in quantum dots is closely related to the lateral shape of the wave functions. We have studied theoretically the fine structure splitting in InAs quantum dots with a type-II confinement imposed by a GaAsSb capping layer. We show that very small values of the fine structure splitting comparable with the natural linewidth of the excitonic transitions are achievable for realistic quantum dots despite the structural elongation and the piezoelectric field. For example, varying the capping layer thickness allows for a fine tuning of the splitting energy. The effect is explained by a strong sensitivity of the hole wave function to the quantum dot structure and a mutual compensation of the electron and hole anisotropies. The oscillator strength of the excitonic transitions in the studied quantum dots is comparable to those with a type-I confinement which makes the dots attractive for quantum communication technology as emitters of polarization-entangled photon pairs. ER -
KŘÁPEK, Vlastimil, Petr KLENOVSKÝ and Tomáš ŠIKOLA. Excitonic fine structure splitting in type-II quantum dots. \textit{Physical Review B}. COLLEGE PK: The American Physical Society, 2015, vol.~92, No~19, p.~''nestránkováno'', 9 pp. ISSN~1098-0121. Available from: https://dx.doi.org/10.1103/PhysRevB.92.195430.
|