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Optics Letters

Optics Letters


  • Vol. 26, Iss. 14 — Jul. 15, 2001
  • pp: 1078–1080

Acousto-optic lens with very fast focus scanning

Ariel Kaplan, Nir Friedman, and Nir Davidson  »View Author Affiliations

Optics Letters, Vol. 26, Issue 14, pp. 1078-1080 (2001)

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We propose and experimentally demonstrate an acousto-optic cylindrical lens with a very fast (400-kHz) focal scanning. The lens is realized by use of two adjacent acousto-optic scanners with counterpropagating acoustic waves that have the same frequency modulation but a π phase difference. This scheme completely suppresses the lateral scan but adds the linear chirp of the two waves and thus functions as a fast focal-scan lens. We also demonstrate the use of this scanning lens in a very fast confocal profilometer.

© 2001 Optical Society of America

OCIS Codes
(050.1590) Diffraction and gratings : Chirping
(230.1040) Optical devices : Acousto-optical devices

Ariel Kaplan, Nir Friedman, and Nir Davidson, "Acousto-optic lens with very fast focus scanning," Opt. Lett. 26, 1078-1080 (2001)

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  1. L. Zhu, P. C. Sun, and Y. Fainman, Appl. Opt. 38, 5350 (1999).
  2. S. Sato, A. Sugiyama, and R. Sato, Jpn. J. Appl. Phys. 24, L626 (1985).
  3. Y. Takaki and H. Ohzu, Opt. Commun. 126, 123 (1996).
  4. T. Shibaguchi and H. Funato, Jpn. J. Appl. Phys. 31, 3196 (1992).
  5. A. VanderLugt, Optical Signal Processing (Wiley, New York, 1992).
  6. A. VanderLugt and A. M. Bardos, Appl. Opt. 31, 4058 (1992).
  7. One- and two-dimensional focal scans can also be obtained with two and four acoustic transducers, respectively, attached to a single crystal.
  8. N. Freidman, A. Kaplan, and N. Davidson, Opt. Lett. 25, 1762 (2000).
  9. Such a realization causes difficulties, first, because of the jumps in the chirp at the end of every cycle and, second, because of the higher harmonics that are needed, which limit the available scan speed.
  10. Our analysis is readily adapted for other laser beam shapes, such as a Gaussian beam, with small changes of numerical constants.
  11. Brimrose Model TEF-110–60.
  12. A diffraction efficiency >70% for the entire Df is achievable in commercial AOSs, resulting in >25% power efficiency for the spherical lens configuration.

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