Iris-assisted Terahertz Field-Induced Second Harmonic Generation in Air
Optics
2020-01-08 v1
Abstract
Terahertz field-induced second harmonic generation (TFISH) is a technique for optical detection of broad-band THz fields. We show that by placing an iris at the interaction volume of the THz and optical fields, the TFISH signal increases by few ten-fold in atmospheric air. The iris-assisted TFISH amplification is characterized at varying air pressures and probe intensities and provides an elegant platform for studying nonlinear phase-matching in the gas phase.
Keywords
Cite
@article{arxiv.1906.10208,
title = {Iris-assisted Terahertz Field-Induced Second Harmonic Generation in Air},
author = {Amit Beer and Dror Hershkovitz and Sharly Fleischer},
journal= {arXiv preprint arXiv:1906.10208},
year = {2020}
}