Self-aligned all-epitaxial microcavity for cavity QED with quantum dots.
Using time-resolved photoluminescence spectroscopy, we have studied the Purcell spontaneous emission enhancement provided by a novel type of microcavity that forms a fully buried, all-epitaxial semiconductor heterostructure. The quantum dot containing region and the cavity boundaries are simultaneously defined in a unique way and lead to spatially self-aligned emitters. We demonstrate post-growth control of the quality factor and the capability of directly imaging the spatial field distribution that critically impacts the Purcell effect.
Muller
A
A
Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA.
Lu
D
D
Ahn
J
J
Gazula
D
D
Quadery
S
S
Freisem
S
S
Deppe
D G
DG
Shih
C K
CK