C. A. Tuan, N. T. T. Trang, L. A. Tu, D. T. Giang, P. H. Duong and P. T. Huy, Optical Properties of Silicon Nanoparticles Prepared by Laser Ablation Method in Various Media, Comm. Phys. 24 (2014) 143–148. DOI: https://doi.org/10.15625/0868-3166/24/3S1/5466.