Generation of high-quality terahertz OAM mode based on soft-aperture difference frequency generation
Optics
2019-12-20 v1
Abstract
We demonstrate the generation of high-quality tunable terahertz (THz) vortices in an eigenmode by employing soft-aperture difference frequency generation of a vortex output and a Gaussian mode. The generated THz vortex output exhibits a high-quality orbital angular momentum (OAM) mode with a topological charge of in a frequency range of 2-6 THz. The maximum average power of the THz vortex output obtained was ~3.3 W at 4 THz.
Keywords
Cite
@article{arxiv.1912.08979,
title = {Generation of high-quality terahertz OAM mode based on soft-aperture difference frequency generation},
author = {Katsuhiko Miyamoto and Kazuki Sano and Takahiro Miyakawa and Hiromasa Niinomi and Kohei Toyoda and Adam Valles and Takashige Omatsu},
journal= {arXiv preprint arXiv:1912.08979},
year = {2019}
}