Abstract
We have fabricated CdMgTe/CdMnTe based pillar microcavities with diameters down to 2 μm by optical lithography and reactive ion etching. Three-dimensional optical confinement is demonstrated by the occurrence of higher lateral modes. In the high excitation regime, the emission linewidth in pillar microcavities is found to be significantly reduced as compared to planar microcavities.
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