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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 15 — May. 20, 1998
  • pp: 3206–3214

Effect of spherical aberration on real-image fidelity from replayed in-line holograms of underwater objects

Xiao Fang and Peter R. Hobson  »View Author Affiliations


Applied Optics, Vol. 37, Issue 15, pp. 3206-3214 (1998)
http://dx.doi.org/10.1364/AO.37.003206


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Abstract

The real image of a line object, located in water of refractive index n w and recorded on an in-line Fraunhofer hologram, is calculated by use of the Huygens–Fresnel principle. The presence of the water–glass and glass–air interfaces or the change in effective wavelength between recording and replay introduce wave-front aberrations. Spherical aberration dominates for a perfectly aligned finite-aperture hologram, and its effect on the replayed image of a finite-width line object is evaluated. Numerical results are compared with experimental data of a 10-μm wire located in water 50.0 mm from a 10-mm-thick glass window, and good agreement is demonstrated. It is shown that the error on the linewidth is less than 1.5%, and the shift in focal plane from the Gaussian plane is less than 16 μm, for a replay-to-recording wavelength ratio μ in the range 0.98 < μn w < 1.02.

© 1998 Optical Society of America

OCIS Codes
(080.0080) Geometric optics : Geometric optics
(090.0090) Holography : Holography
(090.1000) Holography : Aberration compensation
(120.3940) Instrumentation, measurement, and metrology : Metrology
(350.4990) Other areas of optics : Particles

History
Original Manuscript: June 2, 1997
Revised Manuscript: November 10, 1997
Published: May 20, 1998

Citation
Xiao Fang and Peter R. Hobson, "Effect of spherical aberration on real-image fidelity from replayed in-line holograms of underwater objects," Appl. Opt. 37, 3206-3214 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-15-3206

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