Ultrafast control of polarization of terahertz generation from laser–gas interaction using orthogonal few-cycle double-pulse lasers
Source abstract
Abstract
The effect of orthogonal few-cycle double-pulse laser parameters on the terahertz polarization states generated from laser-driven gas plasma is investigated. The results reveal that the terahertz polarization state can be continuously modulated from linear to circular polarization on the femtosecond time scale by varying the time delay between two laser pulses. In addition, terahertz with changing helicity and polarization direction can be produced by alternating the time delay, allowing for ultrafast full control of terahertz polarization states. The approach proposed in this study has the advantage of easy operation and providing a feasible option for generating ultrafast terahertz radiation sources with controllable polarization states.
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Research context
OpenAlex topics: Terahertz technology and applications · Laser-Matter Interactions and Applications · Spectroscopy and Laser Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University 1 , Lanzhou 730070,
School of Mathematics and Physics, Lanzhou Jiaotong University 2 , Lanzhou 730070,
Funding
National Natural Science Foundation of China
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