PubCard - All-optical logic devices based on black arsenic–phosphorus with strong nonlinear optical response and high stability

(Peer-Reviewed) All-optical logic devices based on black arsenic–phosphorus with strong nonlinear optical response and high stability

Leiming Wu 吴雷明 ¹ ² ⁴, Taojian Fan 范涛健 ¹, Songrui Wei ¹, Yijun Xu ¹, Ye Zhang 张也 ¹, Dingtao Ma 马定涛 ¹ ², Yiqing Shu ², Yuanjiang Xiang 项元江 ¹, Jun Liu 刘军 ¹, Jianqing Li 李建庆 ², Krassimir Panajotov ³, Yuwen Qin 秦玉文 ⁴, Han Zhang 张晗 ¹

¹ Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen 518060, China
中国深圳深圳大学微纳光电子学研究院光电科技协同创新中心光电子器件与系统教育部/广东省重点实验室深圳市微纳光子信息技术重点实验室人工智能与数字经济广东省实验室（深圳）
² Faculty of Information Technology, Macau University of Science and Technology, Macao 519020, China
中国澳门澳门科技大学资讯科技学院
³ Department of Applied Physics and Photonics (IR-TONA), Vrije Universiteit Brussels, Pleinlaan 2, B-1050 Brussels, Belgium
⁴ Institute of Advanced Photonics Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China
中国广州广东工业大学信息工程学院先进光子技术研究院

Opto-Electronic Advances, 2022-01-25

https://doi.org/10.29026/oea.2022.200046

https://www.oejournal.org/article/doi/10.29026/oea.2022.200046

Abstract

The Kerr nonlinearity in two-dimensional (2D) nanomaterials is emerging as an appealing and intriguing research area due to their prominent light processing, modulation, and manipulation abilities. In this contribution, 2D black arsenic-phosphorus (B-AsP) nanosheets (NSs) were applied in nonlinear photonic devices based on spatial self-phase modulation (SSPM) method. By applying the Kerr nonlinearity in 2D B-AsP, an all-optical phase-modulated system is proposed to realize the functions of “on” and “off” in all-optical switching.

By using the same all-optical phase-modulated system, another optical logic gate is proposed, and the logical “or” function is obtained based on the 2D B-AsP NSs dispersions. Moreover, by using the SSPM method, a 2D B-AsP/SnS2 hybrid structure is fabricated, and the result illustrates that the hybrid structure possesses the ability of the unidirectional nonlinear excitation, which helps in obtaining the function of spatial asymmetric light propagation.

This function is considered an important prerequisite for the realization of diode functionalization, which is believed to be a factor in important basis for the design of isolators as well. The initial investigations indicate that 2D B-AsP is applicable for designing optical logical devices, which can be considered as an important development in all-optical information processing.