Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 54,
  • Issue 9,
  • pp. 1270-1274
  • (2000)

Dual-Pulse LIBS Using a Pre-ablation Spark for Enhanced Ablation and Emission

Not Accessible

Your library or personal account may give you access

Abstract

In this paper we report the first observations of dual-pulse laser-induced breakdown spectroscopy (LIBS) signal enhancements by using a pre-ablation spark. In this technique a laser pulse is brought in parallel to the sample surface and focused a few millimeters above it to form an air plasma or air spark. A few microseconds later a second laser pulse, which is focused on the sample, ablates sample material and forms the LIBS plasma from which analyte emission occurs. In this way, large LIBS signal enhancements, 11- to 33-fold, are observed for copper and lead, respectively, relative to the signal in the absence of the air spark. In all cases where enhanced LIBS signals are seen, greatly enhanced sample ablation also occurs.

PDF Article
More Like This
Optical emission enhancement using laser ablation combined with fast pulse discharge

Weidong Zhou, Kexue Li, Qinmei Shen, Qiaoling Chen, and Jingming Long
Opt. Express 18(3) 2573-2578 (2010)

Dual-pulse laser-induced breakdown spectroscopy with combinations of femtosecond and nanosecond laser pulses

Jon Scaffidi, Jack Pender, William Pearman, Scott R. Goode, Bill W. Colston, J. Chance Carter, and S. Michael Angel
Appl. Opt. 42(30) 6099-6106 (2003)

Spatial and temporal dependence of interspark interactions in femtosecond-nanosecond dual-pulse laser-induced breakdown spectroscopy

Jon Scaffidi, William Pearman, Marion Lawrence, J. Chance Carter, Bill W. Colston, and S. Michael Angel
Appl. Opt. 43(27) 5243-5250 (2004)

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 Optica member, or as an authorized user of your institution.

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved