T
Toshihide Takagahara
Researcher at Kyoto Institute of Technology
Publications - 121
Citations - 6116
Toshihide Takagahara is an academic researcher from Kyoto Institute of Technology. The author has contributed to research in topics: Quantum dot & Exciton. The author has an hindex of 37, co-authored 121 publications receiving 5887 citations. Previous affiliations of Toshihide Takagahara include City University of New York & Nippon Telegraph and Telephone.
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Theory of the quantum confinement effect on excitons in quantum dots of indirect-gap materials
TL;DR: The large exciton binding energy in Si and Ge quantum dots suggests that the photoluminescence from these nanostructures is of excitonic origin even at room temperature.
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Exciton rabi oscillation in a single quantum dot
TL;DR: A spectroscopic method, which enables characterization of a single isolated quantum dot and a quantum wave function interferometry, is applied to an exciton discrete excited state in an InGaAs quantum dot, making possible the observation of coherent population flopping in a 0D excitonic two-level system in a time-domain interferometric measurement.
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Effects of dielectric confinement and electron-hole exchange interaction on excitonic states in semiconductor quantum dots.
TL;DR: In this paper, a general scheme was established within the effective mass approximation to calculate systematically the excitonic energy spectra in a semiconductor quantum dot including the dielectric confinement effect.
Journal Article
Effects of dielectric confinement and electron-hole exchange interaction on excitonic states in semiconductor quantum dots
TL;DR: A general scheme is established within the effective-mass approximation to calculate systematically the excitonic energy spectra in a semiconductor quantum dot including the dielectric confinement effect including the subband mixing effect due to the electron-hole Coulomb interaction.
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Interplay of Rabi oscillations and quantum interference in semiconductor quantum dots.
TL;DR: By performing wave packet interferometry in the nonlinear excitation regime, a new type of quantum interference phenomenon is discovered, resulting from the interplay between Rabi oscillation and quantum interference.