Evolution of the hot channel generated by femtosecond laser tagging in quiescent air

Matthew R. New-Tolley, Mikhail N. Shneider, Richard B. Miles

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

1 Scopus citations

Abstract

The radial dynamics of hot channels generated from femtosecond laser breakdown in quiescent air are studied numerically. The evolution of the hot channel width is normalized by scaling quantities which allow us to account for the variations in ambient conditions, focal zone geometry and deposited energy in each simulation. The normalized curves collapse onto a single curve referred to as the universal or general solution. General solutions describing the evolution of the fluid variables (density, pressure and temperature) along the laser axis are also found. Approximations of the maximum hot channel width given in literature are compared to measurements obtained from the simulations.

Original languageEnglish (US)
Title of host publication2018 Aerodynamic Measurement Technology and Ground Testing Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105616
DOIs
StatePublished - 2018
Event34th AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2018 - Atlanta, United States
Duration: Jun 25 2018Jun 29 2018

Publication series

Name2018 Aerodynamic Measurement Technology and Ground Testing Conference

Conference

Conference34th AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2018
Country/TerritoryUnited States
CityAtlanta
Period6/25/186/29/18

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

Fingerprint

Dive into the research topics of 'Evolution of the hot channel generated by femtosecond laser tagging in quiescent air'. Together they form a unique fingerprint.

Cite this