Journal article
Coherent photocurrent spectroscopy of single InP-based quantum dots in the telecom band at 1.5 µm



Publication Details
Authors:
Gordon, S.; Yacob, M.; Reithmaier, J.; Benyoucef, M.; Zrenner, A.
Publisher:
SPRINGER
Publication year:
2016
Journal:
Applied Physics B
Pages range:
122:37
Volume number:
122
Number of pages:
7
ISSN:
0946-2171

Abstract
In this work we study the resonant and coherent properties of single InP-based InAs quantum dots, which show an optical emission in the telecom C-band and L-band. High-resolution resonant photocurrent spectroscopy on p-i-n devices reveals narrow linewidths and fully resolved fine structure splittings. We observe Lorentzian line shapes, which allow for the extraction of dephasing times as a function of the applied bias voltage. Coherent ps laser excitation results in pronounced Rabi rotations with increasing pulse area. For p-pulse excitation, we obtain more than 93 % of the theoretically expected photocurrent amplitude. Our results also demonstrate that such state-of-the-art InP-based quantum dots for the telecom band exhibit promising key parameters

Last updated on 2020-07-02 at 11:23

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