Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature

Li, Bowen; Zu, Shuai; Zhang, Zhepeng; Zheng, Li; Jiang, Qiao; Du, Bowen; Luo, Yang; Gong, Yongji; Zhang, Yanfeng; Lin, Feng; Shen, Bo; Zhu, Xing; Ajayan, Pulickel M.; Fang, Zheyu

doi:10.29026/oea.2019.190008

Cited by 67 publications

(60 citation statements)

References 53 publications

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“…This suggests the UEP mode is the primary excitation mechanism of this system. This cut-off of the MPB upon strong interaction between these three modes has not been observed in earlier reports of strong light-matter coupling of quasiparticles in TMDCs 36 . From the electromagnetic simulation, we observe that a weak additional plasmon mode begins to split off from the primary plasmon mode at periods near 600 nm (Fig.…”

Section: Resultscontrasting

confidence: 44%

Hybrid exciton-plasmon-polaritons in van der Waals semiconductor gratings

et al. 2020

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Van der Waals materials and heterostructures that manifest strongly bound exciton states at room temperature also exhibit emergent physical phenomena and are of great promise for optoelectronic applications. Here, we demonstrate that nanostructured, multilayer transition metal dichalcogenides (TMDCs) by themselves provide an ideal platform for excitation and control of excitonic modes, paving the way to exciton-photonics. Hence, we show that by patterning the TMDCs into nanoresonators, strong dispersion and avoided crossing of exciton, cavity photons and plasmon polaritons with effective separation energy exceeding 410 meV can be controlled with great precision. We further observe that inherently strong TMDC exciton absorption resonances may be completely suppressed due to excitation of hybrid light-matter states and their interference. Our work paves the way to the next generation of integrated exciton optoelectronic nano-devices and applications in light generation, computing, and sensing.

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Section: Resultscontrasting

confidence: 44%

Hybrid exciton-plasmon-polaritons in van der Waals semiconductor gratings

et al. 2020

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“…[113] The heterostructure of p-GaTe/n-MoS 2 exhibited an excellent photovoltaic and photodetecting performance, including a rectification ratio of 4 × 10 5 , an external quantum efficiency of 61.68% and a photoresponsivity of 21.83 A W −1 . [121] Alternatively, our group developed a solution-phase approach for growing size-controlled Au nanoparticles on ultrathin MoS 2 sheets by employing BSA-caged Au 25 nanoclusters as both exfoliating agent and gold precursor. Recently, different sized graphene quantum dots (GQDs) were successfully deposited on CVD-grown MoS 2 nanosheets via pipetting or spin-coating to form van der Waals heterostructures, arousing electron transfer from GQD to MoS 2 layer and cascade relaxation dynamics.…”

Section: Surface Hybridization With Other Nanostructuresmentioning

confidence: 99%

Functionalized Hybridization of 2D Nanomaterials

Guan

Han

2019

Advanced Science

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The discovery of graphene and subsequent verification of its unique properties have aroused great research interest to exploit diversified graphene‐analogous 2D nanomaterials with fascinating physicochemical properties. Through either physical or chemical doping, linkage, adsorption, and hybridization with other functional species into or onto them, more novel/improved properties are readily created to extend/expand their functionalities and further achieve great performance. Here, various functionalized hybridizations by using different types of 2D nanomaterials are overviewed systematically with emphasis on their interaction formats (e.g., in‐plane or inter plane), synergistic properties, and enhanced applications. As the most intensely investigated 2D materials in the post‐graphene era, transition metal dichalcogenide nanosheets are comprehensively investigated through their element doping, physical/chemical functionalization, and nanohybridization. Meanwhile, representative hybrids with more types of nanosheets are also presented to understand their unique surface structures and address the special requirements for better applications. More excitingly, the van der Waals heterostructures of diverse 2D materials are specifically summarized to add more functionality or flexibility into 2D material systems. Finally, the current research status and faced challenges are discussed properly and several perspectives are elaborately given to accelerate the rational fabrication of varied and talented 2D hybrids.

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“…When the interaction between 2D materials and nanostructures operates in the strong coupling regime, [126,132,133] an energy exchange between the excitons and optical modes is induced in the heterostructures, accompanied by a more complicated spontaneous emission and spectrum splitting, which is denoted as the Rabi splitting effect. [83,134] It is important to stress that the Rabi splitting effect is a prerequisite to generate exciton-polaritons, which allows for the control and manipulation of light that breaks through the diffraction limit.…”

Section: Rabi Splitting Effectmentioning

confidence: 99%

Hybrid/Integrated Silicon Photonics Based on 2D Materials in Optical Communication Nanosystems

You¹,

Luo²,

Yang³

et al. 2020

Laser & Photonics Reviews

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Silicon (Si) photonics have established as leading technologies in addressing the rapidly increasing demands of huge data transfer in optical communication systems with compact footprints, small power consumption, and ultradense bandwidth, which are driven by the next generation supercomputers and big data era. Particularly, Si photonics will penetrate into optical communication links at an ever-small scale, namely chip-to-chip and on-chip. However, the nanostructures made of Si with an indirect bandgap are not ideal candidates for on-chip light sources, modulators, and photodetectors, which most-frequently require optical materials with direct bandgap. Thanks to the advent of graphene, transition metal dichalcogenides and other two-dimensional (2D) materials, which can facilitate extraordinary progresses in improving device performance at the ultrathin scale, their integration with Si photonics furnishes a heterogeneous platform to construct fully functional and highly integrated photonic communication systems. In this work, the current advancements in the on-chip applications of Si photonics-2D materials heterostructures, inclusive of all essential chip-scale modules and integrated circuits, as well as the future prospective and challenges are reviewed and discussed. The present study sets out to objectively measure the feasibility of the hybrid integration between Si photonics and 2D materials in on-chip optical communications and the advanced applications beyond.

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Large Rabi splitting obtained in Ag-WS2 strong-coupling heterostructure with optical microcavity at room temperature

Cited by 67 publications

References 53 publications

Hybrid exciton-plasmon-polaritons in van der Waals semiconductor gratings

Hybrid exciton-plasmon-polaritons in van der Waals semiconductor gratings

Functionalized Hybridization of 2D Nanomaterials

Hybrid/Integrated Silicon Photonics Based on 2D Materials in Optical Communication Nanosystems

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