Monitoring the formation of oxide apertures in micropillar cavities

Autor: Morten P. Bakker, Pierre Petroff, H.J. Snijders, Dirk Bouwmeester, Donald J. Suntrup, Martin P. van Exter, Tuan-Ahn Truong
Rok vydání: 2013
Předmět:
Zdroj: CLEO: 2013.
Popis: An imaging technique is presented that enables monitoring of the wet thermal oxidation of a thin AlAs layer embedded between two distributed Bragg reflector (DBR) mirrors in a micropillar. After oxidation we confirm by white light reflection spectroscopy that high quality optical modes confined to a small volume have been formed. The combination of these two optical techniques provides a reliable and efficient way of producing oxide apertured micropillar cavities for which the wet thermal oxidation is a critical fabrication step.
Databáze: OpenAIRE