Abstract

A femtosecond air spark has recently been combined with a nanosecond ablative pulse in order to map the spatial and temporal interactions of the two plasmas in femtosecond–nanosecond orthogonal preablation spark dual-pulse laser-induced breakdown spectroscopy (LIBS). Good spatial and temporal correlation was found for reduced atomic emission from atmospheric species (nitrogen and oxygen) and increased atomic emission from ablated species (copper and aluminum) in the femtosecond–nanosecond plasma, suggesting a potential role for atmospheric pressure or nitrogen/oxygen concentration reduction following air spark formation in generating atomic emission enhancements in dual-pulse LIBS.

© 2004 Optical Society of America

Temporal dependence of the enhancement of material removal in femtosecond–nanosecond dual-pulse laser-induced breakdown spectroscopy

Jon Scaffidi, William Pearman, J. Chance Carter, Bill W. Colston, and S. Michael Angel
Appl. Opt. 43(35) 6492-6499 (2004)

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)

Effects of sample temperature in femtosecond single-pulse laser-induced breakdown spectroscopy

Jon Scaffidi, William Pearman, J. Chance Carter, Bill W. Colston, and S. Michael Angel
Appl. Opt. 43(13) 2786-2791 (2004)

Time-dependent single and double pulse laser-induced breakdown spectroscopy of chromium in liquid

Virendra N. Rai, Fang Yu Yueh, and Jagdish P. Singh
Appl. Opt. 47(31) G21-G29 (2008)

Theoretical model for double pulse laser-induced breakdown spectroscopy

Virendra N. Rai, Fang Yu Yueh, and Jagdish P. Singh
Appl. Opt. 47(31) G30-G37 (2008)