Multilayer Anisotropic Thin Film with a Twist
ISSN: 1829-1171
Submitted: 2026-07-17
Natural Sciences, Physics, 2026
Modeling of Terahertz Radiation Generation By Femtosecond Laser Pulse of FEW Cycles
This is an open access article distributed under the
Creative Commons Attribution License, which permits unrestricted use, distribution,
and reproduction in any medium, provided the original work is properly cited.
Submitted: 2026-07-20
© 2026 by author(s) and The Gufo Inc.
This work is licensed under Creative Commons Attribution–NonCommercial International License
(CC BY-NC 4.0).
Abstract
In this paper, we study the spectrum and time profile of terahertz radiation that generated during the propagation of an extraordinary linearly polarized laser pulse of a few optical cycles in the direction normal to the optical axis of a nonlinear uniaxial crystal of 3m symmetry group. We solve Maxwell’s equations describing the propagation of the laser pulse using the FDTD method. As an example, we calculate the spectrum and time profile of terahertz radiation for laser pump pulse with duration 10 fs at 850nm wavelength. As an example, we apply our model to study the propagation of a femtosecond laser pulse in a L 3 iNbO crystal of 390μm thickness.