Femtosecond Laser Printing of Single Ge and SiGe Nanoparticles with Electric and Magnetic Optical Resonances

• DOI: 10.1021/acsphotonics.7b01275
• Publication Date: 2018-01-12T14:29:18Z
• Authors: Denis M. Zhigunov; Andrey B. Evlyukhin; Alexander S. Shalin; Urs Zywietz; Boris N. Chichkov
• Keywords: 02 engineering and technology; 0210 nano-technology

A recently introduced femtosecond laser printing technique was further developed for the fabrication of crystalline single Ge and SiGe nanoparticles (NPs). Amorphous thin films deposited by e-beam evaporation on a transparent substrate were used as donors. The approach is based laser-induced forward transfer process, which provides an opportunity NP-controlled positioning different types receiver substrates. size generated can be varied from about 100 to 300 nm depending pulse energy wavelength. crystallinity composition are both confirmed Raman spectroscopy measurements. experimental visible scattering spectra found well coincident with theoretical simulations performed basis Mie theory. It demonstrated that characterized electric magnetic dipole resonances in near-infrared spectral ranges, promising photonic applications.