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Polaritonic manipulation based on spin-selective optical Stark effect in WS2 and Tamm plasmons hybrid structure

Abstract

Exciton-polaritons have shown great potential as a low-energy consumption and robust solid-state platform for photoelectronics integration and quantum information applications. Here, an all-optical method that uses spin-sensitive optical Stark effect is proposed to manipulate exciton-polaritons for functional polaritonic operations. We use a Tamm plasmons and WS2 hybrid structure with patterned transverse potential to form channeled bright state of polaritons. An optical Stark pulse causes perturbation of the polaritonic potential, so as to control tunneling of polaritons between isolated channels. Polaritonic operations such as switching, splitting and routing were proposed through properly setting of the optical Stark pulse (i.g., pulse width). In addition, spin-sensitive manipulation of the polaritons was proposed taking advantage of the valley-selective excitonic energy shifting induced by polarized optical Stark pulse. These basic operations together with time-space programming of the optical Stark pulses would pave a way of routing and addressing of polaritons for future optoelectronic integration and networking.

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Publication details

The article was received on 11 Nov 2018, accepted on 09 Feb 2019 and first published on 11 Feb 2019


Article type: Paper
DOI: 10.1039/C8NR09091B
Citation: Nanoscale, 2019, Accepted Manuscript

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    Polaritonic manipulation based on spin-selective optical Stark effect in WS2 and Tamm plasmons hybrid structure

    W. zhang, X. li, S. wang, C. zheng, X. Li and Y. J. Rao, Nanoscale, 2019, Accepted Manuscript , DOI: 10.1039/C8NR09091B

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