Wavelength dependence of high-energy air-plasma THz generation under optimal conditions

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Abstract

Maximum 2-color air-plasma THz generation by each pump laser wavelength from an optical parametric amplifier (OPA) is experimentally investigated. While in general the maximum THz yield scales up rapidly as the pump wavelength increases; there are distinct local sweet spots in both the signal and idler wavelength range of the OPA, after which the maximum THz yield rolls off. With 1-mJ pump pulses at 1.82 μm, the generated THz pulse energy was measured to be 0.97 \mu \mathrm{J} with the focused THz field strength as high as 8.5 MV / cm.
Original languageEnglish
Title of host publicationProceedings of 45th International Conference on Infrared, Millimeter, and Terahertz Waves
Number of pages1
PublisherIEEE
Publication date2020
Article number9370574
ISBN (Print)9781728166209
DOIs
Publication statusPublished - 2020
Event45th International Conference on Infrared, Millimeter, and Terahertz Waves - Virtual event, Buffalo, United States
Duration: 8 Nov 202013 Nov 2020
Conference number: 45

Conference

Conference45th International Conference on Infrared, Millimeter, and Terahertz Waves
Number45
LocationVirtual event
CountryUnited States
CityBuffalo
Period08/11/202013/11/2020
Series International Conference on Infrared, Millimeter and Terahertz Waves
ISSN2162-2027

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