Polaritonic manipulation based on the spin-selective optical Stark effect in the WS2 and Tamm plasmon hybrid structure
| Autor: | Yunjiang Rao, Xin Jie Li, Chu Yuan Zheng, Weili Zhang, Shanshan Wang, Xiaofeng Li |
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| Rok vydání: | 2019 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Condensed Matter::Other business.industry Physics::Optics 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences symbols.namesake Stark effect Polariton symbols Optoelectronics General Materials Science Bright state Quantum information 0210 nano-technology business Plasmon Pulse-width modulation Quantum tunnelling |
| Zdroj: | Nanoscale. 11:4571-4577 |
| ISSN: | 2040-3372 2040-3364 |
| Popis: | 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 the spin-sensitive optical Stark effect is proposed to manipulate exciton-polaritons for functional polaritonic operations. We use a Tamm plasmon and WS2 hybrid structure with a patterned transverse potential to form the channeled bright state of polaritons. An optical Stark pulse causes perturbation of the polaritonic potential, so as to control the tunneling of polaritons between isolated channels. Polaritonic operations such as switching, splitting and routing were proposed through properly setting of the optical Stark pulse (e.g., pulse width). In addition, spin-sensitive manipulation of the polaritons was proposed taking advantage of the valley-selective excitonic energy shifting induced by the 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. |
| Databáze: | OpenAIRE |
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