Layer dependent second harmonic generation of two-dimensional gallium sulfide (GaS)

Safayet Ahmed; Junpeng Qiao; Ping Kwong Cheng; Ahmed Mortuza Saleque; Md. Nahian Al Subri Ivan; Mohammad Ismail Hossain; Wayesh Qarony; Yuen Hong Tsang

doi:10.1117/12.2623081

5 March 2022 Layer dependent second harmonic generation of two-dimensional gallium sulfide (GaS)

Safayet Ahmed, Junpeng Qiao, Ping Kwong Cheng, Ahmed Mortuza Saleque, Md. Nahian Al Subri Ivan, Mohammad Ismail Hossain, Wayesh Qarony, Yuen Hong Tsang

Author Affiliations +

Proceedings Volume 12003, 2D Photonic Materials and Devices V; 1200309 (2022) https://doi.org/10.1117/12.2623081
Event: SPIE OPTO, 2022, San Francisco, California, United States

Conference Poster

Abstract

Two-dimensional (2D) materials are getting a lot of attention in the nonlinear optics research due to their excellent structural characteristics and nonlinear effects. Here, the layered dependent second harmonic generation (SHG) of 2D-gallium sulfide (GaS) nanosheets are demonstrated for the first time. According to the obtained findings, SHG signal was identified exclusively for the odd layer GaS-nanosheets due to the existence of broken inversion symmetry. The even layer, on the other hand, generated no SHG signal due to its centrosymmetric structure. Moreover, the layered dependent damaged threshold of the prepared sample is also discussed here.

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Safayet Ahmed, Junpeng Qiao, Ping Kwong Cheng, Ahmed Mortuza Saleque, Md. Nahian Al Subri Ivan, Mohammad Ismail Hossain, Wayesh Qarony, and Yuen Hong Tsang "Layer dependent second harmonic generation of two-dimensional gallium sulfide (GaS)", Proc. SPIE 12003, 2D Photonic Materials and Devices V, 1200309 (5 March 2022); https://doi.org/10.1117/12.2623081

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