Spontaneous emission characteristics from apertured microcavities are studied using quantum-dot light emitters. Spatial averaging over the emitter positions within the apertures significantly impacts the measured lifetime changes, but lifetime changes due to the aperture modes are still readily observed. A maximum increase of a factor of similar to 2.5 over the cavity-free emission rate is measured. We argue that, for a narrow bandwidth emitter, the microcavity enhancement ran lead to nearly-single-mode and high-speed operation even in the spontaneous regime.
机构:
School of Optic-Electronic Information,University of Electronic Science and Technology of ChinaSchool of Optic-Electronic Information,University of Electronic Science and Technology of China
张晓霞
潘炜
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School of Information Science and Technology,Southwest Jiaotong UniversitySchool of Optic-Electronic Information,University of Electronic Science and Technology of China
机构:
Univ Michigan, Dept Elect Engn & Comp Sci, Solid State Elect Lab, Ann Arbor, MI 48109 USAUniv Michigan, Dept Elect Engn & Comp Sci, Solid State Elect Lab, Ann Arbor, MI 48109 USA
Yu, P
Bhattacharya, P
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机构:Univ Michigan, Dept Elect Engn & Comp Sci, Solid State Elect Lab, Ann Arbor, MI 48109 USA
Bhattacharya, P
Cheng, JC
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机构:Univ Michigan, Dept Elect Engn & Comp Sci, Solid State Elect Lab, Ann Arbor, MI 48109 USA