期刊
FRONTIERS OF PHYSICS IN CHINA
卷 5, 期 3, 页码 245-259出版社
HIGHER EDUCATION PRESS
DOI: 10.1007/s11467-010-0105-8
关键词
spontaneous emission; photonic crystals; optical microcavity; metallic nanostructures; local density of states; quantum dots
资金
- Chinese National Key Basic Research Special Fund [2006CB921706, 2010CB923200]
- National Natural Science Foundation of China [10725420, U0934002]
Spontaneous emission of emitters governing the performance of optoelectronic devices is a fundamental phenomenon, and it has strong environment-dependent characteristics. In this article, we mainly review the experimental and theoretical progresses in the control of spontaneous emission by manipulating optical modes with photonic crystals, optical microcavities and metallic nanostructures. The spontaneous emission from emitters in photonic crystals can be modified by the local density of states, and by employing photonic crystals, the devices' efficiency is enhanced, the angular radiation pattern can be engineered, and highly efficient optoelectronic devices are achieved through decreasing the radiative lifetime. In quantum optical devices, microcavities would alter the lifetime of an excited state through tuning the resonance in the frequency and positioning between the emitters and cavity field, and inducing the emitters to emit spontaneous photons in a desired direction. The emerging enhanced electromagnetic field near metallic nanostructures can help to control and manipulate the spontaneous emission of an emitter. The use of micro- and nano-structures to manipulate spontaneous emission will open unprecedented opportunities for realizing functional photonic devices.
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