DSpace at IIT Bombay >
IITB Publications >
Please use this identifier to cite or link to this item:
|Title: ||Quantum dot polarized light sources|
|Authors: ||BHATTACHARYA, P|
|Keywords: ||SURFACE-EMITTING LASERS|
|Issue Date: ||2011|
|Publisher: ||IOP PUBLISHING LTD|
|Citation: ||SEMICONDUCTOR SCIENCE AND TECHNOLOGY,26(1)-|
|Abstract: ||The design, operation and performance of quantum dot spin-polarized vertical cavity surface emitting lasers (VCSELs) and single-photon sources are described and discussed. The effects of spin-induced gain anisotropy on output polarization and threshold current reduction have been studied along with the high-frequency response in a spin-polarized VCSEL. While the output circular polarization in a VCSEL follows the out-of-plane magnetization characteristics of the ferromagnetic spin injector, the output polarization of the spin-polarized single-photon source shows a switching behavior which is explained by invoking the exciton fine structure in the quantum dots and the effects of electron-hole exchange splitting due to in-plane quantum dot rotational asymmetry.|
|Appears in Collections:||Article|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.