11 September 2006 Generating Bessel beams with a tunable acoustic gradient index of refraction lens
Author Affiliations +
The Tunable Acoustic Gradient Index of Refraction (TAG) lens is shown to be an alternative method of generating Bessel beam for optical manipulation. The TAG lens exhibits a combination of tunability, optical throughput, and fast switching speed, overcoming many limitations linked with conventional Bessel beam techniques. A refractive fluid is contained within a circular piezoelectric that is driven with an AC signal to establish a periodic index of refraction in the liquid. Simple changes in amplitude or frequency of the driving signal allows for the rapid modification to the transmitted pattern. The switching speed is characterized by the time to reach a steady state pattern, which is shown to depend primarily on the viscosity of the filling liquid. Times between 300 and 2000 μs are obtained corresponding to fluids with viscosity of 640 cs and 0.65 cs respectively.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tracy Tsai, Tracy Tsai, Euan McLeod, Euan McLeod, Craig B. Arnold, Craig B. Arnold, } "Generating Bessel beams with a tunable acoustic gradient index of refraction lens", Proc. SPIE 6326, Optical Trapping and Optical Micromanipulation III, 63261F (11 September 2006); doi: 10.1117/12.682945; https://doi.org/10.1117/12.682945


Photoacoustic tweezers
Proceedings of SPIE (May 27 2002)
Smart VLSI/FELC spatial light modulators for neural networks
Proceedings of SPIE (December 06 1994)
Optical conveyor belt based on Bessel beams
Proceedings of SPIE (August 18 2005)
Laser-induced surface cleaning from diamond particles
Proceedings of SPIE (February 24 2002)

Back to Top