Multi-mW-level, air-plasma induced ultra-broadband THz pulses for nonlinear THz spectroscopy

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Two-color fs laser-induced air-plasma enables generation of THz pulses with extremely large bandwidth. In recent years, significant progress has been made on improving THz generation efficiency from such a process, including adoption of cylindrical lens focusing [1], multiple-color (harmonic) mixing [2], and long wavelength pumping [3], etc. Very recently, with a 30-mJ, 3.9-m, 20-Hz pump laser, THz yield as high as 185J (3.7 mW) has been reported [4]. However, with the more accessible 1-kHz commercial OPA as the long wavelength pumping source, the reported THz yield was 0.6 mW [3]. In this abstract, we present highest THz yield from a standard kHz OPA driving source - THz generation at multi-mW-level. We also show the huge potential of such THz source by demonstrating strong nonlinear transmission in a n-doped SiC sample.

Original languageEnglish
Title of host publicationProceedings of 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
PublisherIEEE
Publication dateJun 2021
ISBN (Electronic)9781665418768
DOIs
Publication statusPublished - Jun 2021
Event2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference - Virtual event, Munich, Germany
Duration: 21 Jun 202125 Jun 2021
https://www.cleoeurope.org/

Conference

Conference2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
LocationVirtual event
Country/TerritoryGermany
CityMunich
Period21/06/202125/06/2021
Internet address

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Fingerprint

Dive into the research topics of 'Multi-mW-level, air-plasma induced ultra-broadband THz pulses for nonlinear THz spectroscopy'. Together they form a unique fingerprint.

Cite this