Fabrication and optical characterization of large scale membrane containing InP/AlGaInP quantum dots
Fabrication and optical characterization of large scale membrane containing InP/AlGaInP quantum dots
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DOI：
10.1088/0957-4484/26/23/235201
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发表时间：
2015-05
期刊：
影响因子：
3.5
通讯作者：
H. Niederbracht;F. Hargart;Mario Schwartz;E. Koroknay;C. Kessler;M. Jetter;P. Michler
中科院分区：
文献类型：
--
作者：
H. Niederbracht;F. Hargart;Mario Schwartz;E. Koroknay;C. Kessler;M. Jetter;P. Michler
具有高提取效率的单光子源是量子通信和量子计算方案中应用的先决条件。一种有前景的方法是制造包含膜结构的量子点与固体浸没透镜和金属镜的组合。我们已经制作了一个80 nm的薄半导体膜与纳入InP量子点在AlGaInP双异质结势垒通过完全衬底去除。此外，在膜的一侧沉积金层作为镜子。光学特性的详细说明，量子点的独特性质被保留在膜结构。
Single-photon sources with a high extraction efficiency are a prerequisite for applications in quantum communication and quantum computation schemes. One promising approach is the fabrication of a quantum dot containing membrane structure in combination with a solid immersion lens and a metal mirror. We have fabricated an 80 nm thin semiconductor membrane with incorporated InP quantum dots in an AlGaInP double hetero barrier via complete substrate removal. In addition, a gold layer was deposited on one side of the membrane acting as a mirror. The optical characterization shows in detail that the unique properties of the quantum dots are preserved in the membrane structure.