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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 14, Iss. 4 — Apr. 1, 1997
  • pp: 697–704

Self-aligned dual-beam optical laser trap using photorefractive phase conjugation

W. Wang, A. E. Chiou, G. J. Sonek, and M. W. Berns  »View Author Affiliations

JOSA B, Vol. 14, Issue 4, pp. 697-704 (1997)

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We report what is to our knowledge the first experimental demonstration and theoretical analysis of an optical laser trap that uses a pair of mutually phase-conjugate beams. A primary trapping beam derived from an argon laser (514.5 nm) together with its counterpropagating phase-conjugate beam creates a self-aligned dual-beam laser trap that provides stable three-dimensional confinement for micrometer-sized dielectric particles. The transverse trapping efficiency, experimentally measured for low-numerical-aperture (N.A. 0.40–0.85) objective lenses, is found to be comparable with that produced by a single-beam gradient force trap. A theoretical analysis, which compares the performance of the self-aligned dual-beam trap against that of single-beam gradient force and conventional counterpropagating dual-beam laser traps, shows that phase-conjugate trapping provides a slight improvement in axial trapping efficiency over the other trapping geometries. The advantages of combining laser trapping with photorefractive optical phase conjugation for simultaneous sample micromanipulation and optical image processing are discussed.

© 1997 Optical Society of America

W. Wang, A. E. Chiou, G. J. Sonek, and M. W. Berns, "Self-aligned dual-beam optical laser trap using photorefractive phase conjugation," J. Opt. Soc. Am. B 14, 697-704 (1997)

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  1. A. Ashkin, “Acceleration and trapping of particles by radiation pressure,” Phys. Rev. Lett. 24, 156–159 (1970). [CrossRef]
  2. A. Ashkin, J. M. Dziedzic, J. E. Bjorkholm, and S. Chu, “Observation of a single-beam gradient force optical trap for dielectric particles,” Opt. Lett. 11, 288–290 (1986). [CrossRef] [PubMed]
  3. A. Ashkin and J. M. Dziedzic, “Optical trapping and manipulation of viruses and bacteria,” Science 235, 1517–1520 (1987). [CrossRef] [PubMed]
  4. K. Svoboda and S. M. Block, “Biological applications of optical forces,” Annu. Rev. Biomol. Struct. 23, 247–285 (1994). [PubMed]
  5. A. E. Chiou, J. Hong, G. J. Sonek, Y. Liu, and M. W. Berns, “Image processing and trapping of microscopic objects using a phase conjugate Michelson interferometer,” in Biomedical Fiber Optic Instrumentation, J. A. Harrington, D. M. Harris, A. Katair, and F. P. Milanovich, eds., Proc. SPIE 2131, 406–416 (1994). [CrossRef]
  6. R. A. Fisher, ed., Optical Phase Conjugation (Academic, New York, 1983).
  7. P. Gunter and J.-P. Huignard, in Photorefractive Materials and Their Applications I: Fundamental Phenomena, P. Gunter and J.-P. Huignard, eds. (Springer-Verlag, Berlin, 1988), pp. 7–23.
  8. P. Yeh, Introduction to Photorefractive Nonlinear Optics (Wiley, New York, 1993).
  9. R. S. Cudney, R. M. Pierce, and J. Feinberg, “The transient detection microscope,” Nature (London) 332, 424–426 (1988). [CrossRef]
  10. A. E. Chiou, P. Yeh, and M. Khoshnevisan, “Nonlinear optical image subtraction for potential industrial applications,” Opt. Eng. 27, 385–392 (1988). [CrossRef]
  11. J. Feinberg, “Self-pumped, continuous-wave phase conjugator using internal reflection,” Opt. Lett. 7, 486–488 (1982). [CrossRef] [PubMed]
  12. A. Chiou, T. Y. Chang, and M. Khoshnevisan, “High-speed photorefractive phase conjugator with large dynamic range and wide field of view,” in OSA Annual Meeting, Vol. 15 of 1990 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1990), p. 40.
  13. P. Yeh and A. Chiou, in Real-Time Optical Information Processing, B. Javidi and J. L. Horner, eds. (Academic, Boston, Mass., 1994).
  14. W. H. Wright, G. J. Sonek, and M. W. Berns, “Parametric study of the forces on microspheres held by optical tweezers,” Appl. Opt. 33, 1735–1748 (1994). [CrossRef] [PubMed]
  15. A. Ashkin, “Forces of a single-beam gradient laser trap on a dielectric sphere in the ray optics regime,” Biophys. J. 61, 569–582 (1992). [CrossRef] [PubMed]
  16. A. Ashkin and J. M. Dziedzic, “Observation of radiation-pressure trapping of particles by alternating light beams,” Phys. Rev. Lett. 54, 1245–1248 (1985). [CrossRef] [PubMed]

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