The influence of the constant physical fields on structure of polymer composites with cadmium oxide and polyaniline

Bardadym, Y.V.; Sporyagin, É. A.

doi:10.1109/nap.2017.8190261

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Cited by 3 publications

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All-optical switching in epsilon-near-zero asymmetric directional coupler

Sha

Xie

et al. 2022

Sci Rep

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We propose an all-optical switch based on an asymmetric directional coupler structure with epsilon-near-zero (ENZ) layer. The nonlinear optical properties the of ENZ layer are analyzed by hot-electron dynamics process, and the all-optical operating performance of the switch on the silicon nitride platform is investigated. It is found that the pump-induced refractive index change in ENZ layer gives rise to a transfer of signal light in the optical system. We demonstrate that the proposed switch design features an insertion loss of < 2.7 dB, low crosstalk of < − 18.93 dB, and sub-pico-second response time at the communication wavelength of 1.55 μm. With ultrafast response, high performance, and simple structure, the device provides new possibilities for all-optical communication and signal processing.

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