@inproceedings{bd7d238368624de1a00c8807b0928459,
title = "Excitation-Wavelength Dependent Terahertz Wave Polarization Control in Laser-Induced Filament",
abstract = "We examine the terahertz (THz) emission from air filament driven by two-color lasers with relatively longer wavelengths than 800 nm. The THz energy dependence on the input laser energy increases more rapidly with a longer laser wavelength, and the scaling laws of THz energy as a function of fundamental wavelength vary for different optical powers, which is theoretically validated by considering the optical wavelength-dependent ionization rate. Furthermore, the THz polarization undergoes a continuous rotation as a function of the laser wavelength, since the relative phase and polarization of the two pulses are adjusted through changing the excitation wavelength in the frequency doubling crystal. Our results contribute to the understanding of THz wave generation in a femtosecond laser filament and suggest a practical way to control the polarization of terahertz pulses for potential applications.",
author = "Zhang, {L. L.} and Zhang, {C. L.} and Yu, {X. M.} and M. Liu and Zhao, {Y. J.} and Zhang, {X. C.}",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 43rd International Conference on Infrared Millimeter and Terahertz Waves, IRMMW-THz 2018 ; Conference date: 09-09-2018 Through 14-09-2018",
year = "2018",
month = oct,
day = "25",
doi = "10.1109/IRMMW-THz.2018.8510520",
language = "English",
series = "International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz",
publisher = "IEEE Computer Society",
booktitle = "2018 43rd International Conference on Infrared Millimeter and Terahertz Waves, IRMMW-THz 2018",
address = "United States",
}