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Generation and modulation of non-classical light in a strongly coupled photon–emitter system
Photonics Research ( IF 6.6 ) Pub Date : 2022-03-25 , DOI: 10.1364/prj.449106
Lingxiao Shan 1 , Juanjuan Ren 1 , Qi Zhang 1 , Qi Liu 1 , Yun Ma 1 , Qihuang Gong 1, 2, 3 , Ying Gu 1, 2, 3
Affiliation  

Non-classical light, especially its single photon and squeezing properties, plays a fundamental role in on-chip quantum networks. The single photon property has been widely studied in photonic cavities including photonic crystals (PhCs), micropillar cavities, nanowires, and plasmonic cavities. However, the generation and modulation of squeezing light in nanophotonic cavities remain to be explored. Here, we theoretically demonstrate a strongly coupled PhC–plasmonic-emitter system enabling non-classical light generation and modulation. The hybridization of a PhC waveguide and an Ag nanoparticle forms a band-edge mode with a narrow linewidth and a strong confined field, which enables strong light–emitter interaction, further resulting in simultaneous generation of squeezing and single photon properties for on-chip applications. Non-classical light emission can be modulated with the detuning between the band-edge mode and the emitter. The emission is efficiently channeled by the PhC waveguide with a high coupling efficiency, accompanying unidirectional transmission under excitation by a circularly polarized emitter. The system provides a candidate for tunable and bifunctional on-chip non-classical light sources at the nanoscale and may offer more possibilities to build versatile quantum networks.

中文翻译:

强耦合光子发射系统中非经典光的产生和调制

非经典光,尤其是其单光子和压缩特性,在片上量子网络中起着基础性作用。单光子特性已在光子腔中得到广泛研究,包括光子晶体 (PhCs)、微柱腔、纳米线和等离子体腔。然而,纳米光子腔中挤压光的产生和调制仍有待探索。在这里,我们理论上展示了一个强耦合的 PhC-等离子体发射器系统,能够实现非经典光的产生和调制。PhC 波导和 Ag 纳米粒子的杂化形成具有窄线宽和强限制场的带边模式,从而实现了强的发光体相互作用,进一步导致片上应用同时产生压缩和单光子特性. 非经典光发射可以通过带边模式和发射器之间的失谐来调制。发射通过具有高耦合效率的PhC波导有效地引导,伴随着在圆偏振发射器的激发下的单向传输。该系统为纳米尺度的可调谐和双功能片上非经典光源提供了候选者,并可能为构建多功能量子网络提供更多可能性。
更新日期:2022-03-25
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