Stephen E. Bialkowski, PhD, is Professor of Chemical Analysis at Utah State University with interests in atmospheric chemistry, spectroscopy, nonlinear optics, and chemometrics.

Nelson G. C. Astrath, PhD, is Associate Professor in the Department of Physics at Universidade Estadual de Maringá with interests in photothermal sciences and light and matter interaction effects.

Mikhail A. Proskurnin, PhD, is Professor in Analytical Chemistry in the Department of Chemistry at Lomonosov Moscow State University with interests in photonics, analytical spectroscopy, and photothermal spectroscopy in analytical and physical chemistry and applied materials science and biomedical research. Less