o:1811 Spora i uskladištena svetlost u sfernim kvantnim tačkama u lestvičastoj konfiguraciji Slow and stored light in spherical quantum dots in ladder-type configuration : doctoral dissertation sr This thesis investigates the weak probe laser pulse propagation throughthe medium consisting of semiconductor spherical quantum dots withan on-center hydrogen impurity. Under the presence of one or twostrong continuous-wave control fields, the three- or four-level laddertypelight–matter coupling scheme forms, leading to the coherent effectof electromagnetically induced transparency. Several cases areconsidered: the three-level system with non-degenerate and three-folddegenerate middle level, and the four-level system, where theadditional field can behave as the probe or control field. The light–matter interaction is described by Maxwell-Bloch equations, which aresolved both numerically and analytically with approximations, whilequantum dot energies and wavefunctions are calculated using theLagrange mesh method. It is shown that, in the presence of the controlfield, the reduced absorption is related to the increase of the dispersioncurve slope, generating slow light. The light storage and retrieval aredemonstrated by adiabatically switching the control field off and backon. Quantitative parameters: the group index, relative width, efficiency,and fidelity of the output pulse with respect to the laser strengths, inputpulse spectral width and storage time are also calculated. The outputpulse dependence on the decay rates and the external static magneticfield strength is also studied. Furthermore, the output pulse efficiencyis shown to increase by using the phase-modulated control laser.Special attention is given to the comparison of numerical and analyticalsolutions, as well as the implementation of the obtained results inquantum information processing, optical telecommunications andmagnetometry. Biografija i bibliografija autora: str. [311-313],Bibliografija: str. 293-310. Datum odbrane: 25.01.2022. Quantum Optics 91552100 57474569 91552101 8543 2022-11-29T09:43:51.053Z 45 no 46 Nikola, 1991- Filipović 80386057 2021 63 mentor Ljubiša, 1966- Nešić 6968935 2021 63 mentor Vladan, 1988- Pavlović 21895015 2021 63 član komisije Ljiljana, 1966- Stevanović 9606247 2021 63 član komisije Ana, 1977- Mančić 14136935 2021 63 član komisije Goran, 1979- Gligorić 80389641 2021 311 str. 59665488 http://phaidrani.ni.ac.rs/o:1811 no yes 12 2022-11-29T09:43:51.320Z 70 Spora svetlost, skladištenje svetlosti, elektromagnetnoindukovana transparentnost, Autler-Taunsov efekat,poluprovodničke nanostrukture, sferna kvantna tačka,vodonična nečistoća, lestvičasta konfiguracija Slow light, light storage, electromagnetically induced transparency,Autler–Townes effect, semiconductor nanostructures, sphericalquantum dot, hydrogen impurity, ladder-type configuration 530.145:539.1(043.3) P 190, P 200, P 230 1738 18A07 18A0702 2021