Related Experiment Video
Updated: Jun 22, 2026

Dependence of Laser-induced Breakdown Spectroscopy Results on Pulse Energies and Timing Parameters Using Soil Simulants
Published on: September 23, 2013
Emission enhancement of laser-induced breakdown spectroscopy by localized surface plasmon resonance for analyzing
Takayuki Ohta1, Masafumi Ito, Takashi Kotani
1Department of Opto-Mechatronics, Faculty of Systems Engineering, Wakayama University, Wakayama, Japan. ohta@sys.wakayama-u.ac.jp
Abstract:
We demonstrate the monitoring of plant nutrients in leaves of Citrus unshiu and Rhododendron obtusum using low-energy (<1 mJ) laser-induced breakdown spectroscopy. The raw plant leaf was successfully ablated without desiccation before laser irradiation, by applying metallic colloidal particles to the leaf surface. The emission intensity with the metallic particles was larger than that without the particles. This result indicates an improvement of the sensitivity and the detection limit of laser-induced breakdown spectroscopy. The emission enhancement was caused by localized surface plasmon resonance and was dependent on the size and material of metallic particles.

