Monitoring the formation of oxide apertures in micropillar cavities

作者:Bakker Morten P*; Suntrup Donald J III; Snijders Henk; Tuan Ahn Truong; Petroff Pierre M; van Exter Martin P; Bouwmeester Dirk
来源:Applied Physics Letters, 2013, 102(10): 101109.
DOI:10.1063/1.4795329

摘要

An imaging technique is presented that enables monitoring of the wet thermal oxidation of a thin AlAs layer embedded between two distributed Bragg reflector 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.

  • 出版日期2013-3-11