Abstract
We have observed a variety of far-infrared resonances, including the transition from the ground state to the first excited state in neutral donors, and singlet and triplet transitions of negative donor ions (${\mathit{D}}^{\mathrm{\ensuremath{-}}}$), as well as electron-cyclotron resonance, in well-center-doped GaAs quantum wells, employing a recently developed optical detection technique. The power of this technique for studying impurity states in confined systems is clearly revealed. Results provide evidence for the existence of ${\mathit{D}}^{\mathrm{\ensuremath{-}}}$ centers under optical excitation in multiple-quantum-well structures doped only in the wells.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
