Optoelectronic Properties and Applications of Quantum Dots

Autor: Jørn Märcher Hvam

Publikováno v: Optical Properties of Materials and Their Applications

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::121487f3e1f50d317aa4009e1bb00c56
https://doi.org/10.1002/9781119506003.ch17

On the interpretation of wave function overlaps in quantum dots

Autor: Søren Stobbe, Jørn Märcher Hvam, Peter Lodahl

Publikováno v: physica status solidi (b). 248:855-858

The spontaneous emission rate of excitons strongly confined in quantum dots (QDs) is proportional to the overlap integral of electron and hole envelope wave functions. A common and intuitive interpretation of this result is that the spontaneous emiss

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0e7e3e48410d1a7fb827df60d7bb11c5
https://doi.org/10.1002/pssb.201000875

Ultra-low-loss inverted taper coupler for silicon-on-insulator ridge waveguide

Autor: Haiyan Ou, Kresten Yvind, Jørn Märcher Hvam, Minhao Pu, Liu Liu

Publikováno v: Optics Communications. 283:3678-3682

An ultra-low-loss coupler for interfacing a silicon-on-insulator ridge waveguide and a single-mode fiber in both polarizations is presented. The inverted taper coupler, embedded in a polymer waveguide, is optimized for both the transverse-magnetic an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e54cd3cb2f9ebc8a007c1cdb82c08e28
https://doi.org/10.1016/j.optcom.2010.05.034

Size dependence of the wavefunction of self-assembled InAs quantum dots from time-resolved optical measurements

Autor: Peter Lodahl, Toke Lund-Hansen, Søren Stobbe, Philip Trøst Kristensen, Jørn Märcher Hvam, I. Nikolaev, Jeppe Johansen, Willem L. Vos

Publikováno v: Physical Review B (Condensed Matter and Materials Physics), 77(073303), 1-4. American Institute of Physics
Johansen, J, Stobbe, S, Nikolaev, I S, Lund-Hansen, T, Kristensen, P T, Hvam, J M, Vos, W L & Lodahl, P 2008, ' Size dependence of the wavefunction of self-assembled InAs quantum dots from time-resolved optical measurements ', Physical Review B Condensed Matter, vol. 77, no. 7, pp. 073303 . https://doi.org/10.1103/PhysRevB.77.073303

The radiative and nonradiative decay rates of InAs quantum dots are measured by controlling the local density of optical states near an interface. From time-resolved measurements, we extract the oscillator strength and the quantum efficiency and thei

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acfbf47912bed859fb150b77410ec5be
https://doi.org/10.1103/physrevb.77.073303

Dynamic Spatiotemporal Speed Control of Ultrashort Pulses in Quantum-Dot SOAs

Autor: Ortwin Hess, M. van der Poel, Jesper Mørk, Edeltraud Gehrig, Jørn Märcher Hvam

Publikováno v: IEEE Journal of Quantum Electronics. 42:1047-1054

We present theoretical and experimental results on the propagation of ultrashort pulses in quantum-dot (QD) laser amplifiers. The propagation time of the light pulses is controlled by the pulse itself (self-induced speed control) or by injection of a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6871a3d7742ceb23e8ff30124d85148
https://doi.org/10.1109/jqe.2006.881632