Issue 13, 2019

A promising nonlinear optical material and its applications for all-optical switching and information converters based on the spatial self-phase modulation (SSPM) effect of TaSe2 nanosheets

Abstract

Few-layer TaSe2 nanosheets are prepared by liquid-phase exfoliation, the nonlinear optical response of which is researched based on the spatial self-phase modulation effect. The large nonlinear refractive index and the third-order nonlinear susceptibility have been confirmed experimentally. Based on the cross-phase modulation technique, the attractive nonlinear optical responses of 2D TaSe2 nanosheets have been utilized to realize all-optical switching. It is shown that a strong controlling light beam can change the phase of weak signal light, leading to the novel all-optical switching phenomenon. Based on the all-optical switching, we propose information transfer by using a baffle to control the mode of input signal to achieve the synchronized control of the output signal. Our experimental results have great potential applications in all-optical information transmission, all-optical switching, photoelectric detectors, and laser devices.

Graphical abstract: A promising nonlinear optical material and its applications for all-optical switching and information converters based on the spatial self-phase modulation (SSPM) effect of TaSe2 nanosheets

Article information

Article type
Paper
Submitted
18 Jan 2019
Accepted
26 Feb 2019
First published
26 Feb 2019

J. Mater. Chem. C, 2019,7, 3811-3816

A promising nonlinear optical material and its applications for all-optical switching and information converters based on the spatial self-phase modulation (SSPM) effect of TaSe2 nanosheets

Y. Shan, L. Wu, Y. Liao, J. Tang, X. Dai and Y. Xiang, J. Mater. Chem. C, 2019, 7, 3811 DOI: 10.1039/C9TC00333A

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