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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 18 — Sep. 15, 2008
  • pp: 2146–2148

High-speed varifocal imaging with a tunable acoustic gradient index of refraction lens

Alexandre Mermillod-Blondin, Euan McLeod, and Craig B. Arnold  »View Author Affiliations

Optics Letters, Vol. 33, Issue 18, pp. 2146-2148 (2008)

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Fluidic lenses allow for varifocal optical elements, but current approaches are limited by the speed at which focal length can be changed. Here we demonstrate the use of a tunable acoustic gradient (TAG) index of refraction lens as a fast varifocal element. The optical power of the TAG lens varies continuously, allowing for rapid selection and modification of the effective focal length at time scales of 1 μ s and shorter. The wavefront curvature applied to the incident light is experimentally quantified as a function of time, and single-frame imaging is demonstrated. Results indicate that the TAG lens can successfully be employed to perform high-rate imaging at multiple locations.

© 2008 Optical Society of America

OCIS Codes
(230.1040) Optical devices : Acousto-optical devices
(110.1080) Imaging systems : Active or adaptive optics
(220.1080) Optical design and fabrication : Active or adaptive optics

ToC Category:
Imaging Systems

Original Manuscript: June 5, 2008
Manuscript Accepted: July 16, 2008
Published: September 12, 2008

Alexandre Mermillod-Blondin, Euan McLeod, and Craig B. Arnold, "High-speed varifocal imaging with a tunable acoustic gradient index of refraction lens," Opt. Lett. 33, 2146-2148 (2008)

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