Abstract

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.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Triggering and guiding HV discharge in air by filamentation of single and dual fs pulses

Zhe Zhang, Xin Lu, Wen-Xi Liang, Zuo-Qiang Hao, Mu-Lin Zhou, Zhao-Hua Wang, Xun Liu, and Jie Zhang
Opt. Express 17(5) 3461-3468 (2009)

Fifteen meter long uninterrupted filaments from sub-terawatt ultraviolet pulse in air

D. E. Shipilo, N. A. Panov, E. S. Sunchugasheva, D. V. Mokrousova, A. V. Shutov, V. D. Zvorykin, N. N. Ustinovskii, L. V. Seleznev, A. B. Savel’ev, O. G. Kosareva, S. L. Chin, and A. A. Ionin
Opt. Express 25(21) 25386-25391 (2017)

Sonographic probing of laser filaments in air

Jin Yu, Didier Mondelain, Jérôme Kasparian, Estelle Salmon, Sylvain Geffroy, Catherine Favre, Véronique Boutou, and Jean-Pierre Wolf
Appl. Opt. 42(36) 7117-7120 (2003)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription