Title :
Colloidal Quantum Dots in High-Q Pillar Microcavities
Author :
Thomay, T. ; Kahl, M. ; Kohnle, V. ; Beha, K. ; Merlein, J. ; Hagner, M. ; Halm, A. ; Ziegler, J. ; Nann, T. ; Fedutik, Y. ; Artemyev, M. ; Woggon, U. ; Pérez-Willard, F. ; Leitenstorfer, A. ; Bratschitsch, R.
Author_Institution :
Univ. of Konstanz, Konstanz
Abstract :
In summary, we have fabricated high-Q micropillar cavities with circular and elliptical cross section containing CdSe/ZnS quantum dots or rods in the spacer layer. We find a systematically higher Q-factor along the short axis of the elliptical pillar compared to circular ones. The spectral position of the cavity resonances have been calculated by modeling the pillar cavity as a waveguide with an effective refractive index.
Keywords :
II-VI semiconductors; Q-factor; cadmium compounds; cavity resonators; microcavities; photoluminescence; semiconductor quantum dots; wide band gap semiconductors; zinc compounds; CdSe-ZnS; Q-factor; cavity resonances; circular pillar; colloidal quantum dots; elliptical pillar; micropillar cavities; micropost resonators; pillar cavity; spectral position; III-V semiconductor materials; Microcavities; Milling; Photoluminescence; Physics; Q factor; Quantum dots; Refractive index; Temperature; Zinc compounds;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4387046
