Seeded optical breakdown of molecular and noble gases

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report experimental results on the dual laser-pulse plasma excitation in various gases at atmospheric pressure. Dilute plasma channels generated through filamentation of ultraintense femtosecond laser pulses in air, argon, and helium are densified through the application of multi-Joule nanosecond heater pulses. Optical breakdown in atomic gases can be achieved for considerably longer delays between femtosecond and nanosecond pulses compared to that in molecular gases. The densification of the seed channel in molecular gases is always accompanied by its fragmentation into discrete bubbles, while in atomic gases the densified channel remains smooth and continuous.

Original languageEnglish (US)
Title of host publicationInternational Symposium on High Power Laser Ablation 2012
Pages68-78
Number of pages11
DOIs
StatePublished - Dec 1 2012
Event9th International Symposium on High Power Laser Ablation 2012, HPLA 2012 - Santa Fe, NM, United States
Duration: Apr 30 2012May 3 2012

Publication series

NameAIP Conference Proceedings
Volume1464
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other9th International Symposium on High Power Laser Ablation 2012, HPLA 2012
CountryUnited States
CitySanta Fe, NM
Period4/30/125/3/12

Keywords

  • Nonlinear optics at extreme intensities
  • atmospheric propagation
  • filamentation
  • optical breakdown in gases
  • plasma channels

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Seeded optical breakdown of molecular and noble gases'. Together they form a unique fingerprint.

Cite this