Laser-Induced Breakdown Spectroscopy (LIBS) has proven to be a useful research tool for material analysis for decades. However, because of the amount of energy required in a few nanosecond pulse to generate a stable and reliable LIBS signal, the lasers are often large and inefficient, relegating their implementation to research facilities, factory floors, and assembly lines. Small portable LIBS systems are now possible without having to compromise on energy needs by leveraging off of advances in high-density packaging of electronics, opto-mechanics, and highly efficient laser resonator architecture. This paper explores the integration of these techniques to achieve a mJ class eye-safe LIBS laser source, while retaining a small, light-weight package suitable for handheld systems.
Kim Bares, Justin Torgerson, Laine McNeil, Patrick Maine, and Steve Patterson, "Novel high-density packaging of solid state diode pumped eye-safe laser for LIBS," Proc. SPIE 10513, Components and Packaging for Laser Systems IV, 1051313 (Presented at SPIE LASE: February 01, 2018; Published: 20 February 2018); https://doi.org/10.1117/12.2295381.
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