Aleksey V. Kirsanov

Femtosecond laser-induced nanofabrication in the near-field of atomic force microscope tip

Femtosecond laser-induced formation of nanostructures in the near field of an atomic force microscope tip is demonstrated. Mechanism of nanofabrication will be discussed.

Experimental investigation into interaction of femtosecond laser pulses with aerosol

This paper presents the results of experimental investigations into the interaction of laser pulses of femtosecond duration with aerosol having various composition (aqueous aerosol, dye solution with embedded nanoparticles), as well as with individual particles in the case of two-photon induced stimulated fluorescence. The acoustic method was employed to study the decay of the energy of the filament generated at different focusing, as well as the transmittance of the filament energy as it passed through the aerosol layer.

Formation of nanostructures on the surface of metal films by the probe of an atomic-force microscope during the action of laser pulses

When the probe of an atomic-force microscope is irradiated with pulses from a titanium-sapphire laser, nanostructures with characteristic diameter 30-70 nm and depth 5-15 nm are obtained on the surface of metal films. The formation thresholds of the structures have been measured, and studies have been made of how the thresholds depend on the polarization of the laser radiation, the widths of the laser pulse, and the distance between the point of the probe and the sample surface. It is found that the main cause for the formation of the nanostructures is the mechanical pressure of the probe on the sample when it elongates because of being heated by absorbed laser radiation. The use of pulses of femtosecond width made it possible to extend the range of materials subject to processing.

Femtosecond laser-induced nanofabrication in the near field of an atomic force microscope tip

Femtosecond laser-induced formation of nanostructures in the near field of an atomic force microscope tip is demonstrated. Mechanism of nanofabrication will be discussed.