Deflection of Terahertz Vortex Beam in Nonpolar Liquids by Means of Acousto-optics

Acousto-optic diffraction of terahertz vortex beams was studied for the first time. It was shown that nonpolar liquids are the most promising acousto-optic media in the terahertz range. Possibility of vortex beam wide-angle deflection was demonstrated. Experimental research was performed for cyclohexane, hexane and white spirit. The experiments were carried out at the Novosibirsk free-electron laser.