A MHz-rate device employing acoustic waves within a fluid is used to modulate an incident laser beam and form patterns including focal spots, Bessel beams, and doughnut beams. Theory, experiment, and applications are presented.
© 2008 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3300) Lasers and laser optics : Laser beam shaping
(230.0230) Optical devices : Optical devices
(230.1040) Optical devices : Acousto-optical devices
E. McLeod, A. Mermillod-Blondin, and C. B. Arnold, "Rapid Beam Shaping Using Tunable Acoustic Gradient Index of Refraction Lenses," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper CMO3.