Control of Coherently Coupled Exciton Polaritons in Monolayer Tungsten Disulphide

Liu, Xiaoze; Bao, Wei; Li, Quanwei; Ropp, Chad; Wang, Yuan; Zhang, Xiang

doi:10.1103/physrevlett.119.027403

Cited by 113 publications

(111 citation statements)

References 40 publications

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“…Constructing a strong coupling system requires the quantum emitter with large transition momentum, which perfectly matches the advantage of strong excitonic effect in 2DLMs . Therefore, with the employment of 2DLMs, numbers of investigations with novel observations in the field of strong coupling are performed . Figure c illustrates the representative strong coupling systems constructed by 2DLMs and plasmonic nanocavities, where the TMDs together with a single plasmonic nanostructure or the nanoparticle on nanofilm structure are chosen .…”

Section: Outlook and Discussionmentioning

confidence: 99%

“…Except for the advantage of large dipole momentum, the 2DLMs also exhibit the merit of controllable excitonic transition energy via the approaches of electrostatic grating, thermal scanning, or optical pumping. So, comparing with strong coupling systems with other quantum emitters, the 2DLM strong coupling system can offer the opportunities for strong coupling manipulation in facile and controllable ways (Figure d) . Moreover, the abundant physical properties of the excitons in 2DLMs also bring about plenty of novel discoveries.…”

Section: Outlook and Discussionmentioning

confidence: 99%

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Recent Advances in Quantum Effects of 2D Materials

Chen

et al. 2019

Adv Quantum Tech

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The celebrated discovery of graphene has spurred tremendous research interest in two‐dimensional layered materials (2DLMs) with unique attributes in the quantum regime. In 2DLMs, each layer is composed of a covalently bonded lattice and is weakly coupled to its neighboring layers by van der Waals interactions. There are abundant members in this 2DLM family beyond graphene, such as transition metal dichalcogenides (MX2, M = Mo, W; X = S, Se, Te), semimetal chalcogenide (InSe), black phosphorus, etc. The 2DLMs afford rich and ideal material platforms for studying quantum effects and their corresponding applications in the two‐dimensional (2D) limit. In this review, the emerging quantum effects in 2DLMs are examined with particular focus on their band structure evolvement, valleytronics, and quantum Hall/quantum spin Hall effects. Based on the summary of quantum effects discovered in 2DLMs, the future research directions and prospective applications are also discussed.

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Section: Outlook and Discussionmentioning

confidence: 99%

Section: Outlook and Discussionmentioning

confidence: 99%

Recent Advances in Quantum Effects of 2D Materials

Chen

et al. 2019

Adv Quantum Tech

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“…Therefore, the work by Liu et al proved for the first time that monolayer MoS 2 support EPs in the strong coupling regime at room temperature, which is attributed to the large exciton binding energy. The following study with well‐protected TMD sample and precisely engineered microcavities leads to observations of EPs with higher quantum coherence at low temperatures …”

Section: Far‐field Spectroscopy Studies Of Eps In Tmdsmentioning

confidence: 99%

“…In addition to F‐P cavities formed by DBR mirrors, several other types of F‐P cavities were reported in the studies of EPs in TMDs. For example, TMD planar waveguides could serve as F‐P microcavities due to their capability of confining photons within the waveguide .…”

Section: Far‐field Spectroscopy Studies Of Eps In Tmdsmentioning

confidence: 99%

Recent Progress on Exciton Polaritons in Layered Transition‐Metal Dichalcogenides

Fei

2019

Advanced Optical Materials

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Exciton polaritons (EPs) are half‐light, half‐matter quasiparticles formed due to the coupling between photons and excitons in semiconductors. Their uniqueness lies at the strong light–matter interactions and long‐distance transport, thus promising for many novel applications in photonics, information, and quantum technologies. Recently, EPs in group‐VI transition‐metal dichalcogenides (TMDs) have attracted a lot of research interest due to their room‐temperature stability, long‐distance propagation, and controllability through electric gating, valley‐selective optical pumping, and precise thickness control. In this progress report, recent studies of EPs in TMDs are reviewed, highlighting their key properties and functionalities, and then discussing the potential directions for future research.

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“…The k ‐square term introduces more tunable parameters into the dielectric function and results in many unique properties of the EPs. For example, recent studies have experimentally verified that strong binding exciton can remain stable even in room temperature in Group VI transition‐metal dichalcogenides (TMDs) with chemical formula MX 2 (M = Mo, W; X = S, Se) …”

Section: Origins and Classification Of Surface Polaritonsmentioning

confidence: 99%

Nanoimaging and Nanospectroscopy of Polaritons with Time Resolved s‐SNOM

Yao

et al. 2019

Advanced Optical Materials

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The development of electronics and photonics is entering a new era of ultrahigh speed sensing, data processing, and telecommunication. The carrier frequencies of the next‐generation electronic devices inevitably extend beyond radio frequencies, marching toward the nominally photonics‐dominated territories, e.g., terahertz and beyond. As a result, electronic and photonic techniques naturally merge and seek common ground. At the forefront of this technical trend is the field of polaritonics, where polaritons are half‐light, half‐matter quasiparticles that carry the properties of both “bare” photons and “bare” dipole‐carrying excitations. The Janus‐faced nature of polaritons renders the unique capability of operando control using photoexcitation or applied electric field. Here, state‐of‐the‐art ultrafast polaritonic phenomena probed by scattering‐type scanning near‐field optical microscope (s‐SNOM) techniques is reviewed. The ultrafast dynamical control and loss‐reduction of the polariton propagation are discussed with special emphasis on the creation and probing of the tip or edge induced plasmon– and phonon–polaritons in low‐dimensional systems. The detailed technical aspects of s‐SNOM and its possible future development are also presented.

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Control of Coherently Coupled Exciton Polaritons in Monolayer Tungsten Disulphide

Cited by 113 publications

References 40 publications

Recent Advances in Quantum Effects of 2D Materials

Recent Advances in Quantum Effects of 2D Materials

Recent Progress on Exciton Polaritons in Layered Transition‐Metal Dichalcogenides

Nanoimaging and Nanospectroscopy of Polaritons with Time Resolved s‐SNOM

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