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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 34 — Dec. 1, 1997
  • pp: 8929–8934

Image formation and data acquisition in a stage scanning 4Pi confocal fluorescence microscope

Juhani T. Soini, Martin Schrader, Pekka E. Hänninen, and Stefan W. Hell  »View Author Affiliations


Applied Optics, Vol. 36, Issue 34, pp. 8929-8934 (1997)
http://dx.doi.org/10.1364/AO.36.008929


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Abstract

We describe the three-dimensional (3-D) image formation and data acquisition in a stage scanning 4Pi confocal fluorescence microscope with the use of two-photon excitation. The 3-D point-spread functions of the 4Pi confocal and regular confocal microscope are measured and compared. Particular emphasis is given to the data acquisition procedure. 4Pi confocal microscopy results in a point-spread function that is 4 times sharper than that of a regular confocal microscope, ultimately leading to superior 3-D imaging of translucent fluorescent specimens. For a two-photon excitation wavelength of approximately 800 nm, we obtain an axial resolution of 140 nm.

© 1997 Optical Society of America

History
Original Manuscript: March 31, 1997
Revised Manuscript: August 11, 1997
Published: December 1, 1997

Citation
Juhani T. Soini, Martin Schrader, Pekka E. Hänninen, and Stefan W. Hell, "Image formation and data acquisition in a stage scanning 4Pi confocal fluorescence microscope," Appl. Opt. 36, 8929-8934 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-34-8929


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