Optical properties of wide‐bandgap monolithic pillar microcavities with different geometries

Autor:	Jürgen Gutowski, M. Seyfried, Frank Jahnke, Stephan Figge, H. Dartsch, K. Sebald, Christian Tessarek, Carsten Kruse, J. Kalden, Detlef Hommel, A. Gust, Matthias Florian
Rok vydání:	2011
Předmět:	Mode volume Materials science Photoluminescence Condensed Matter::Other business.industry Oscillator strength Band gap Pillar Physics::Optics Condensed Matter Physics Polarization (waves) Quantum dot Optoelectronics Photonics business
Zdroj:	physica status solidi c. 8:1246-1249
ISSN:	1610-1642 1862-6351
Popis:	A customization of the optical properties of pillar microcavities on the desired applications is essential for their future use as quantum-optical devices. Therefore, all-epitaxial cavities with CdSe or InGaN quantum dots embedded in pillar structures with different geometries have been realized by focused-ion-beam etching. The high temperature stability of the emission and the large oscillator strength of quantum dots made of these material systems are combined with small mode volume pillar microcavities to utilize the light-matter interaction. The quality factors of circularly shaped pillar microcavities have been measured and compared to theoretical calculations. As a possibility to achieve polarized light emission, asymmetrically shaped microcavities are presented. Examples of an elliptically shaped pillar as well as of photonic molecules are investigated with respect to their photoluminescence characteristics and polarization. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b9d22f123803a07b9e68825c7e2a7443 https://doi.org/10.1002/pssc.201000846 Zobrazit plný text záznamu Plný text