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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 31, Iss. 24 — Aug. 20, 1992
  • pp: 4973–4978

Fourier-transform holographic microscope

Waleed S. Haddad, David Cullen, Johndale C. Solem, James W. Longworth, Armon McPherson, Keith Boyer, and Charles K. Rhodes  »View Author Affiliations


Applied Optics, Vol. 31, Issue 24, pp. 4973-4978 (1992)
http://dx.doi.org/10.1364/AO.31.004973


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Abstract

We describe a holographic microscope with a spatial resolution approaching the diffraction limit. The instrument uses a tiny drop of glycerol as a lens to create the spherically diverging reference illumination necessary for Fourier-transform holography. Measurement of the point-spread function, which is obtained by imaging a knife edge in dark-field illumination, indicates a transverse resolution of 1.4 μm with wavelength λ = 514.5 nm. Longitudinal resolution is obtained from the holograms by the numerical equivalent of optical sectioning. We describe the method of reconstruction and demonstrate the microscope’s capability with selected biological specimens. The instrument offers two unique capabilities: (1) it can collect three-dimensional information in a single pulse of light, avoiding specimen damage and bleaching; and (2) it can record three-dimensional motion pictures from a series of light pulses. The conceptual design is applicable to a broad range of wavelengths and we discuss extension to the x-ray regime.

© 1992 Optical Society of America

History
Original Manuscript: May 7, 1991
Published: August 20, 1992

Citation
Waleed S. Haddad, David Cullen, Johndale C. Solem, James W. Longworth, Armon McPherson, Keith Boyer, and Charles K. Rhodes, "Fourier-transform holographic microscope," Appl. Opt. 31, 4973-4978 (1992)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-31-24-4973

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