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arXiv 1602.00974physics.opticsquant-ph
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量子发射体介导的光学纳米天线中的高效模式转换

Efficient mode conversion in an optical nanoantenna mediated by quantum emitters

Jakob Straubel, Robert Filter, Carsten Rockstuhl, Karolina Slowik

摘要:

在不同电磁模式之间转换信号是未来信息技术的资产。一般来说,稍微不对称的光学纳米天线使得光学纳米天线能够维持亮模式和暗模式之间的耦合。然而,转换效率可能非常低。在这里,我们表明,量子发射器的额外结合允许极大地提高这种效率。增强的局域态密度使量子发射体以极高的速率在其上能级和下能级之间循环;因此转换能量非常有效。该过程是强大的,相对于可能的实验公差,并增加了一个新的成分,同时研究和应用光学纳米系统中的耦合现象被利用。

英文摘要:

Converting signals between different electromagnetic modes is an asset for future information technologies. In general, slightly asymmetric optical nanoantennas enable the coupling between bright and dark modes sustained by an optical nanoantenna. However, the conversion efficiency might be very low. Here, we show that the additional incorporation of a quantum emitter allows to tremendously enhance this efficiency. The enhanced local density of states cycles the quantum emitter between its upper and lower level at an extremely hight rate; hence converting the energy very efficient. The process is robust with respect to possible experimental tolerances and adds a new ingredient to be exploited while studying and applying coupling phenomena in optical nanosystems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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