Abstract
Well-ordered chains of InP quantum dots on a self-organized undulating In0.48Ga0.52P surface exhibit optical anisotropy due to their shape and the In0.48Ga0.52P matrix. The structures are investigated by polarization-dependent photoluminescence together with transmission electron microscopy. Luminescence from the In0.48Ga0.52P matrix is polarized in one crystallographic direction due to anisotropic strain arising from a lateral compositional modulation. The photoluminescence measurements show enhanced linear polarization in the alignment direction of quantum dots, [1¯10]. A polarization degree of 66% is observed; this polarization in emission is independent of the polarization of the excitation laser. The optical anisotropy is achieved with a straightforward heterostructure, requiring only a single layer of QDs.
Sign-in/Register to access full text options 
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.
