ИСТИНА

Here we present results of investigation of THz generation in liquid metal eutectic alloy (48% Sn, 52% In) microdroplets irradiated with femtosecond laser pulses. The single liquid-metal microdroplets with a diameter around 50 um were produced with special dispenser device. These microdroplets were falling down into vacuum chamber and their flowing was synchronized with the laser pump pulses from Ti:Sa regenerative amplifier. It provides possibility to supply a new microdroplet coming across each laser pulse, and to eliminate registration of any cumulative effects. A double-pulses excitation scheme with low-energy prepulse and more powerful second pulse was applied to get efficient THz generation from the droplet.