• Pacuski, W.
• Seredyński, B.
• Sobczak, K.
• Borysiuk, J.
• Rousset, J. G.
• Szczytko, J.
• Starzyk, P.
• Mirek, R.
• Ściesiek, M.
• Stephan, D.
• Piȩtka, B.

Abstract

<p>Opaque substrates precluded, so far, transmission studies of II-VI semiconductor microcavities. This work presents the design and molecular beam epitaxy growth of semimagnetic (Cd,Zn,Mn)Te quantum wells embedded into a (Cd,Zn,Mg)Te-based microcavity, which can be easily separated from the GaAs substrate. Our lift-off process relies on the use of a MgTe sacrificial layer which stratifies in contact with water. This allowed us to achieve a II-VI microcavity prepared for transmission measurements. We evidence the strong light-matter coupling regime using photoluminescence, reflectivity, and transmission measurements at the same spot on the sample. By comparing a series of reflectance spectra before and after lift-off, we prove that the microcavity quality remains high. Thanks to Mn content in quantum wells we show the giant Zeeman splitting of semimagnetic exciton-polaritons in our transmitting structure.</p>

Topics

• photoluminescence
• II-VI semiconductor