Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Measurements of laser impulse coupling at 130 fs

[+] Author Affiliations
Claude R. Phipps

Photonic Associates (USA)

James R. Luke

New Mexico Institute of Mining and Technology (USA)

David J. Funk, David S. Moore, J. Glownia

Los Alamos National Lab. (USA)

Thomas Lippert

Paul Scherrer Institut (Switzerland)

Proc. SPIE 5448, High-Power Laser Ablation V, 1201 (September 20, 2004); doi:10.1117/12.568419
Text Size: A A A
From Conference Volume 5448

  • High-Power Laser Ablation V
  • Claude R. Phipps
  • Taos, NM | April 25, 2004

abstract

For the first time, we have measured the momentum coupling coefficient and plasma expansion velocity (specific impulse) in the femtosecond region, over a laser intensity range from ablation threshold to thirty times threshold. These measurements extend the laser pulsewidth three orders of magnitude relative to previous reports. We studied several pure metals and three organic compounds as targets. The organic compounds were exothermic polymers specifically developed for the micro-laser plasma thruster, and two of these used "tuned absorbers" rather than carbon particles for the laser absorption function. The metals ranged from Li to W in atomic weight. We measured time of flight profiles for ions and found dramatic two-temperature distributions for some conditions. Specific impulse reached record values for this type of measurement and ablation efficiency was near 100%.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Claude R. Phipps ; James R. Luke ; David J. Funk ; David S. Moore ; J. Glownia, et al.
"Measurements of laser impulse coupling at 130 fs", Proc. SPIE 5448, High-Power Laser Ablation V, 1201 (September 20, 2004); doi:10.1117/12.568419; http://dx.doi.org/10.1117/12.568419


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.