arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1201.4071cond-mat.mes-hallcond-mat.quant-gasphysics.optics
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全光极化激元晶体管

All-optical polariton transistor

Dario Ballarini, Milena De Giorgi, Emiliano Cancellieri, Romuald Houdré, Elisabeth Giacobino, Roberto Cingolani, Alberto Bramati, Giuseppe Gigli, Daniele Sanvitto

摘要:

虽然光学技术为信息传输提供了最佳解决方案,但光学逻辑仍然需要探索定性的新概念。激子-极化激元是激子和光子之间强耦合的复合粒子,具有极大的非线性、长程相干和抑制散射等特性。在这里,我们展示了一个开关计划的极化激元移动的平面内的微腔,满足所有的要求,全光晶体管。在共振激发下,极化激元密度的非线性增加的功率阈值由弱控制光束改变,获得高达19倍的放大,开关能量在每平方微米阿焦耳的范围内。极化激元在微腔平面中的传播被用来控制第二个空间分离的晶体管的开关,从而为极化激元集成电路的实现开辟了道路。

英文摘要:

While optical technology provides the best solution for the transmission of information, optical logics still calls for qualitative new concepts to be explored. Exciton-polaritons are composite particles, resulting from the strong coupling between excitons and photons, which have recently demonstrated exceptional properties like huge non-linearities, long range coherence and suppression of scattering. Here we demonstrate a switching scheme for polaritons moving in the plane of a microcavity which satisfy all the requirements for an all-optical transistor. Under resonant excitation, the power threshold for the nonlinear increase of the polariton density is varied by a weak control beam, obtaining up to 19 times amplification with switching energies in the range of attojoule per square micron. Polariton propagation in the plane of the microcavity is then used to control the switching of a second, spatially separated transistor, opening the way to the implementation of polariton integrated circuits.

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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