Microscopic theory of spatially resolved photoluminescence in disordered nanostructures
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| Title | Microscopic theory of spatially resolved photoluminescence in disordered nanostructures |
| Authors | |
| Abstract | Quantum dots have become objects of extensive research activity because of their applications such as advanced electronic and optoelectronic devices. Here we analyse theoretically the optical properties of dots naturally formed by interface fluctuations in GaAs narrow quantum wells. Specifically we present the simulations of local optical spectroscopy and spatially resolved photoluminescence in quantum wells with interface fluctuations. The theory includes light quantization, acoustic phonon scattering, and inhomogeneous sample-excitation and/or light-detection. Such theoretical framework provides a general basis for the description of spectroscopic imaging. Numerically calculated absorption and photoluminescence images clarify the impact of the near-field optical setup and put forward the potentials of the method for the understanding of near-field light emission from semiconductor quantum structures. |
| Publisher | Accademia Peloritana dei Pericolanti |
| Date | 2009-11-25 |
| Source | 0365-0359 |
| Rights | Articles and conference papers published in Atti della Accademia Peloritana dei Pericolanti – Classe di Scienze Fisiche, Matematiche e Naturali are distributed under the terms and conditions of a Creative Commons Attribution 3.0 Unported License (effective since 2009, Vol. 87). Correspondingly, authors who publish with this journal agree to the following terms:Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work´s authorship and initial publication in this journal.Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal´s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access). |