Scaling behavior of ultrafast two-color terahertz generation in plasma gas targets: energy and pressure dependence

Optics Express
George Rodriguez, Georgi L Dakovski

Abstract

Ultrafast terahertz emission from two-color generated laser plasma gas targets is studied using air and the noble gases (neon, argon, krypton, and xenon) as the generation media. Terahertz output pulse energy and power spectra are measured as function of gas species, gas pressure, and input pulse energy up to 6 mJ per pulse using a 40-fs 1-kHz Ti:sapphire laser system as the drive source. Terahertz pulse energies approaching 1 microJ per pulse with spectral content out to 40 THz and pulse duration of 35 fs is reported. A simple one dimensional transient photocurrent ionization model is used to calculate the spectra showing good agreement with experiments.

References

Oct 10, 2006·Physical Review Letters·Jianming DaiX-C Zhang
Sep 23, 2008·Applied Optics·A BörzsönyiK Osvay
Apr 16, 2007·Optics Express·Ki-Yong KimGeorge Rodriguez
Aug 8, 2009·Physical Review Letters·Haidan Wen, Aaron M Lindenberg
Jan 19, 2010·Optics Letters·V A Kostin, N V Vvedenskii

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Citations

Oct 13, 2011·Biomedical Optics Express·Boian S AlexandrovGeorge Rodriguez
Jan 26, 2011·Optics Letters·Carlos R Baiz, Kevin J Kubarych
Jul 9, 2013·Physical Review Letters·Matteo ClericiRoberto Morandotti

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