Abstract

Multi-physics coupling, composed of an intense THz laser and electric field, serves as a new approach to realize the ultrahigh-level enhancement on third-harmonic generation (THG) of cubic quantum dots (CQDs). The exchange of quantum states caused by anticrossing of intersubbands is demonstrated by the Floquet method and finite difference method with the increasing laser-dressed parameter and electric field. The results show that the rearrangement of the quantum states excites the THG coefficient of CQDs four orders of magnitude higher than that achieved with a single physical field. The optimal polarization direction of incident light that maximizes the THG exhibits strong stability along the z axis at high laser-dressed parameter and electric field.

© 2022 Optica Publishing Group

Multiple polarization-selective and wideband enhanced optical properties of a cubic quantum dot realized by the multi-physical field

Keyin Li, Siqi Zhu, Hao Yin, Zhen Li, and Zhenqiang Chen
Opt. Express 30(15) 27560-27571 (2022)

Restorable, enhanced, and multifaceted tunable optical properties in a coaxial quantum well driven by the electric field and intense laser field

Jingzhao Li, Keyin Li, Ge Zhang, Zhen Li, and Zhen Qiang Chen
Opt. Express 30(3) 3474-3487 (2022)

Terahertz laser field manipulation on the electronic and nonlinear optical properties of laterally-coupled quantum well wires

Guanghui Liu, Yanan Cao, Renming Liu, Gengyan Chen, Feng Wu, Yunbao Zheng, Zhanxu Chen, Kangxian Guo, and Liangliang Lu
Opt. Express 30(4) 5200-5212 (2022)

Strong-laser-field-induced ionization assisted by a terahertz pulse

Dejan B. Milošević
Opt. Lett. 47(7) 1669-1672 (2022)

Interconversion between OAM and SAM in five-wave mixing process in medium with the fourth-order optical susceptibility

V. A. Diukov, K. S. Grigoriev, and V. A. Makarov
Opt. Lett. 47(6) 1307-1310 (2022)