Solid-state quantum optics with quantum dots in photonic nanostructures

Nanophotonics

article

Peter Lodahl¹  Søren Stobbe¹ 

[1] Niels Bohr Institute, University of Copenhagen

关键词: quantum dots;    quantum electrodynamics;    quantum optics;    light-matter interaction;    photonic crystals;   

DOI  :  10.1515/nanoph-2012-0039

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

Quantum nanophotonics has become a new research frontier where quantum optics is combined with nanophotonics in order to enhance and control the interaction between strongly confined light and quantum emitters. Such progress provides a promising pathway towards quantum-information processing on an all-solid-state platform. Here we review recent progress on experiments with quantum dots in nanophotonic structures with special emphasis on the dynamics of single-photon emission. Embedding the quantum dots in photonic band-gap structures offers a way of controlling spontaneous emission of single photons to a degree that is determined by the local light-matter coupling strength. Introducing defects in photonic crystals implies new functionalities. For instance, efficient and strongly confined cavities can be constructed enabling cavity-quantum-electrodynamics experiments. Furthermore, the speed of light can be tailored in a photonic-crystal waveguide forming the basis for highly efficient single-photon sources where the photons are channeled into the slowly propagating mode of the waveguide. Finally, we will discuss some of the surprises that arise in solid-state implementations of quantum-optics experiments in comparison to their atomic counterparts. In particular, it will be shown that the celebrated point-dipole description of light-matter interaction can break down when quantum dots are coupled to plasmon nanostructures.

【 授权许可】

CC BY