Time and species dependent ambient air’s effects on carbon clusters generated during femtosecond laser ablation of highly oriented pyrolytic graphiteWenxia Bao, Nan Zhang, Peipei Feng, Han Wu and Xiaonong ZhuEur. Phys. J. D, 69 12 (2015) 270DOI: https://doi.org/10.1140/epjd/e2015-60161-1