We demonstrate the generation of Bessel beams using an acousto-optic array based on a liquid filled cavity surrounded by a cylindrical multi-element ultrasound transducer array. Conversion of a Gaussian laser mode into a Bessel beam with tunable order and position is shown. Also higher-order Bessel beams up to the fourth order are successfully generated with experimental results very closely matching simulations.
Grinenko, A., MacDonald, M. P., Courtney, C. R. P., Wilcox, P. D., Demore, C. E. M., Cochran, S., & Drinkwater, B. W. (2015). Tunable beam shaping with a phased array acousto-optic modulator. Optics Express, 23(1), 26-32. https://doi.org/10.1364/OE.23.000026