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Influence of air humidity on 248-nm ultraviolet laser pulse filamentation.

08:00 EDT 1st May 2019 | BioPortfolio

Summary of "Influence of air humidity on 248-nm ultraviolet laser pulse filamentation."

At first glance, the amount of water molecules naturally contained in humid air is negligibly small to affect filamentation of ultrashort laser pulses. However, here we show, both experimentally and numerically, that for ultraviolet laser pulses with 248 nm wavelength this is not true. We demonstrate that with increase of air humidity the plasma channels generated by the ultraviolet laser pulses in air become longer and wider, while the corresponding electron density in humid air can be up to one order of magnitude higher compared to dry air.

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This article was published in the following journal.

Name: Optics letters
ISSN: 1539-4794
Pages: 2165-2168

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