Universal properties of locally generated terahertz waveforms from polarization-controlled two- and multicolor ionizing fields

authored by

H. Alirezaee, S. Skupin, V. Vaicaitis, A. Demircan, I. Babushkin, Luc Bergé, U. Morgner

Abstract

The polarization states of terahertz (THz) radiation generated in a photoionized gas driven by intense two- or multi-frequency fields with locally controlled polarization are studied. We reveal a universal property of the resulting THz waveforms: the ellipticity of their polarization state increases linearly with frequency. This "linear chirp of ellipticity"makes plasma-based THz generation unique among other THz sources. However, it also imposes some constraints on the polarization properties of the generated THz radiation. We derive a general expression for the THz ellipticity and demonstrate how the polarization states of the generated THz waveforms can be manipulated and controlled by the polarization of the pump pulses.

Organisation(s)

Institut für Quantenoptik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

External Organisation(s)

Shahid Chamran University of Ahvaz
Université Claude Bernard Lyon 1
Vilnius University
Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (MBI)
Universite de Bordeaux

Type

Artikel

Journal

Physical Review Research

Volume

7

ISSN

2643-1564

Publication date

14.07.2025

Publication status

Veröffentlicht

Peer reviewed

Yes

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Electronic version(s)

https://doi.org/10.1103/dj4k-q4x2 (Access: Offen)