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

fYear

2007

fDate

17-22 June 2007

Firstpage

1

Lastpage

1

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEOE-IQEC.2007.4387046

Filename

4387046