[6] J. T. Walsh, T. F. Deutsch. Er:YAG laser ablation of tissue: measurement of ablation rates. Lasers Surg. Med., 9, 208-211(1989).
[8] R. Ostrowski, J. Marcak, A. Rycyk, M. Strelec, I. Smelter, A. Koss. Er:YAG laser system for cleaning of painted surfaces. Conference on Lasers and Electro-Optics Europe, 676(2006).
[37] J. Zhang, D. H. Li, R. J. Chen, Q. H. Xiong. Laser cooling of a semiconductor by 40 kelvin. Nature, 493, 504-508(2013).