Liu Chang

Dr. Liu Chang


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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26 June 2024 in Photonics
Verified
Journal Article
Open access
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LCLiu Chang
Liu Chang
YGYing Guan
Ying Guan
YWYan Wu
Yan Wu
XHXiaobo Hu
Xiaobo Hu
KCKhian-Hooi Chew
Khian-Hooi Chew
Ruipin ChenRuipin Chen
Ruipin Chen
In this study, we demonstrate both theoretically and experimentally second harmonic generation (SHG) of a twisted vector vortex optical field (TVVOF) using a nonlinear type-II phase-matched β-BaB2O4 (BBO) crystal. Our study introduces a novel method to manipulate SHG by independently modulating the two orthogonal polarization components of a TVVOF. This flexibility in controlling SHG can be achieved through accurate experimental adjustments of the polarization components. Furthermore, we reveal that the SHG can be dynamically tuned by varying the angle between the polarization direction of the optical field and the principal axis of the BBO crystal via rotation. These findings provide a new approach for the flexible manipulation of SHG in structured vector optical fields, which have potential applications in optical communication, quantum optics, and photonic device engineering.