DataVXAdvanced Optical MaterialsPaper
journal article·2025-07Open access

Electrically Tunable Strong Exciton Resonance of Second Harmonic Generation in van der Waals Heterostructures (Advanced Optical Materials 20/2025)

Hongjian Wu, Haitao Chen, Jinsen Han, Yang Xiao, Xiaoming Yuan, Dongdong Kang, Mengjian Zhu, Zhihong Zhu, Shiqiao Qin, Jiayu Dai

Advanced Optical Materials· Volume 13· Issue 20
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Source abstract

Abstract

Second Harmonic Generation Tuning In article 2403535, Mengjian Zhu, Zhihong Zhu, Shiqiao Qin, Jiayu Dai, and co-workers show a new method to tune the local SHG response in van der Waals heterostructures by leveraging strong exciton resonance. A systematic investigation reveals how exciton resonance and charge transfer processes within the heterostructure modulate SHG emission. This platform achieves non-invasive local modulation with full reversibility and nanoscale compatibility, resolving the issue of exciton-carrier interactions in 2D nonlinear photonic systems.
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Research context

Nanomaterials

OpenAlex topics: Molecular Junctions and Nanostructures · Mechanical and Optical Resonators · Quantum optics and atomic interactions

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Affiliations

College of Science, Hunan Key Laboratory of Extreme Matter and Applications Hunan Research Center of the Basic Discipline for Physical States National University of Defense Technology Changsha 410073 P. R. China

College of Advanced Interdisciplinary Studies Hunan Provincial Key Laboratory of Novel Nano‐optoelectronic Information Materials and Devices Nanhu Laser Laboratory National University of Defense Technology Changsha 410073 P. R. China

Key Laboratory of Optoelectronic Materials and Devices Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 P. R. China

School of Physics Hunan Key Laboratory of Super Microstructure and Ultrafast Process Central South University Changsha 410006 P. R. China

References

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