1 research outputs found
Design and Control of Mode Interaction in Coupled ZnTe Optical Microcavities
The
photonics involving II–VI epitaxial layers was limited
so far to structures based on a single planar microcavity. Here, we
present double vertically coupled ZnTe optical microcavities in planar
and 3-D photonic molecule geometry. We design the structures with
the help of transfer matrix method calculations and we establish their
fabrication technology using molecular beam epitaxy. We characterize
the samples by reflectivity spatial mapping and study them by angle-integrated
and angle-resolved photoluminescence and reflectivity. We efficiently
tailor the interaction strength of the optical cavities modes by adjusting
the spatial separation between the microcavities, their thickness
ratio, and the size of the micropillars etched out of the planar structure.
Coupling constants extracted from our measurements agree with those
determined in calculations in the frame of a tight-binding approach
applied to one-dimensional photonic structures