Vivek Kumar Singh is an Associate Professor in Department of Physics of Lucknow University, India. He has worked extensively on applications of XRF, LIBS, TOF-SIMS, and FTIR Spectroscopy for the study of numerous kinds of biological specimens such as gallstones, kidney stones, teeth, bones, plants, salts and others. Dr Singh is the recipient of the prestigious award of Raman Fellowship by UGC, Government of India.

Durgesh Kumar Tripathi, D.Phil., is Assistant Professor at Amity Institute of Organic Agriculture, Amity University, Uttar Pradesh, India. He has been the recipient of the prestigious UGC-DS-Kothari Post-Doctoral Fellowship from Centre of Advanced Study in Botany, BHU, India, and the Tony B. Academic Award, 2017, Washington DC, USA

Yoshihiro Deguchi began his career in laser diagnostics with BE, ME, and DE degrees from Toyohashi University of Technology in 1985, 1987, and 1990. He moved to Tokushima University as a full professor in 2010. Professor Deguchi has published research papers on the industrial applications of laser diagnostics and is one of the leading engineers to put laser diagnostics into practical use, especially in large scale plants.

Zhenzhen Wang is an Associate Professor at Xi'an Jiaotong University, in the Department of Thermal Power and Control Engineering in the School of Energy and Power Engineering. Her research interests are the laser diagnostics, measurement, and optimal control of thermal power plants, especially the developed applications of laser-induced breakdown spectroscopy (LIBS), laser breakdown time-of-flight mass spectrometry (LB-TOFMS), and tunable diode laser absorption spectroscopy (TDLAS).