Title :
Circularly Polarized Emission from Colloidal Nanocrystal Quantum Dots Confined in Sculptured Thin Film Based Microcavities
Author :
Xu, Jian ; Zhang, Fan ; Lakhtakia, Akhlesh ; Pursel, Sean M. ; Gerhold, Michael
Author_Institution :
Penn State Univ., State College
Abstract :
We report the simultaneous control of the polarization state and emission bandwidth of colloidal nanocrystal quantum dots by embedding them in chiral reflector-based microcavities. Significant improvements in directionality and color purity have been observed in the polarized light output arising from the enhanced coupling between the NQD-excitons and the confined electromagnetic field.
Keywords :
colloidal crystals; excitons; light polarisation; microcavities; quantum dots; thin films; NQD-excitons; chiral reflector; circularly polarized emission; colloidal nanocrystal quantum dots; color purity; confined electromagnetic field; microcavities; sculptured thin film; Bandwidth; Electromagnetic coupling; Electromagnetic wave polarization; Microcavities; Nanocrystals; Optical coupling; Optical polarization; Potential well; Quantum dots; Transistors;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4452792
