Title :
Enhanced quantum-confined Stark effect of vertically coupled quantum dots at room temperature
Author :
Jung-Hoon Ser ; Lee, Y.H. ; Jong-Wook Kim ; Jae-Eung Oh
Author_Institution :
Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
Summary form only given.Quantum confined Stark effect (QCSE) of vertically-coupled QDs (VCQDs) are investigated by modulation spectroscopy of absorption itself. The selfaligned column of VCQDs forms a coupled electronic system and effective dimension of QDs along vertical electric field is much enlarged, resulting in the increased Stark shift. Unlike electroreflectance spectra, electroabsorption spectra of VCQDs are strong enough to clearly determine the Stark shift of QDS.
Keywords :
electroabsorption; quantum confined Stark effect; semiconductor quantum dots; coupled electronic system; electroabsorption spectra; enhanced quantum-confined Stark effect; increased Stark shift; modulation spectroscopy; room temperature; vertical electric field; vertically coupled quantum dots; vertically-coupled QDs; Absorption; Control systems; Infrared detectors; Molecular beam epitaxial growth; Quantum dots; Real time systems; Resonance; Stark effect; Temperature; US Department of Transportation;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.907127
