Abstract
Laser-induced breakdown spectroscopy (LIBS) is typically performed at ambient Earth atmospheric conditions. However, interest in LIBS in other atmospheric conditions has increased in recent years, especially for use in space exploration (e.g., Mars and Lunar) or to improve resolution for isotopic signatures. This review focuses on what has been reported about the performance of LIBS in reduced pressure environments as well as in various gases other than air.
Highlights
Laser-induced breakdown spectroscopy (LIBS) is a popular technique because of its speed, simplicity, and usually inexpensive hardware
LIBS in pressures and atmospheric compositions other than Earth ambient has gained interest as LIBS has been promoted for space exploration applications [14,15,16]
Studies examining the effect of pressure conditions on LIBS of ambient gas have been investigated [35], the scope of this review will focus on the effect on ambient conditions on LIBS spectra generated from surfaces
Summary
Laser-induced breakdown spectroscopy (LIBS) is a popular technique because of its speed, simplicity, and usually inexpensive hardware. There are several excellent reviews [9,10] and books [11,12,13] on LIBS and its applications These applications occur under standard Earth atmospheric conditions (i.e., 760 Torr). Interest in LIBS under other atmospheric conditions has been a growing area of study both for fundamental knowledge and challenging applications. LIBS in pressures and atmospheric compositions other than Earth ambient has gained interest as LIBS has been promoted for space exploration applications [14,15,16]. This review focuses on compiling an understanding of LIBS phenomena that have been gained through the various pressure dependence and atmospheric composition studies. Studies examining the effect of pressure conditions on LIBS of ambient gas have been investigated [35], the scope of this review will focus on the effect on ambient conditions on LIBS spectra generated from surfaces
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