Wide field amplitude and phase confocal microscope with parallel phase stepping

N. B E Sawyer; S. P. Morgan; Michael Geoffrey Somekh; C. W. See; X. F. Cao; B. Y. Shekunov; E. Astrakharchik

doi:10.1063/1.1400156

Wide field amplitude and phase confocal microscope with parallel phase stepping

N. B E Sawyer, S. P. Morgan, Michael Geoffrey Somekh, C. W. See, X. F. Cao, B. Y. Shekunov, E. Astrakharchik

Research output: Journal article publication › Journal article › Academic research › peer-review

17 Citations (Scopus)

Abstract

We describe a wide field phase sensitive confocal microscope based on correlation between speckles. In this system, parallel optical phase stepping provides for the simultaneous capture of four interferograms using a single camera, giving the system the potential to operate at high speed. The interferograms are mapped to a common frame of reference, removing any relative distortion in the process, so that phase, amplitude, and interference efficiency images can be obtained. We use a new phase stepping algorithm that accounts for the unequal phase steps and unbalanced beam amplitudes that are a consequence of the optical arrangement. Experimental results to show that the system operates as a wide field amplitude and phase confocal system are presented.

Original language	English
Pages (from-to)	3793-3801
Number of pages	9
Journal	Review of Scientific Instruments
Volume	72
Issue number	10
DOIs	https://doi.org/10.1063/1.1400156
Publication status	Published - 1 Oct 2001
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)
Instrumentation

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10.1063/1.1400156

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abstract = "We describe a wide field phase sensitive confocal microscope based on correlation between speckles. In this system, parallel optical phase stepping provides for the simultaneous capture of four interferograms using a single camera, giving the system the potential to operate at high speed. The interferograms are mapped to a common frame of reference, removing any relative distortion in the process, so that phase, amplitude, and interference efficiency images can be obtained. We use a new phase stepping algorithm that accounts for the unequal phase steps and unbalanced beam amplitudes that are a consequence of the optical arrangement. Experimental results to show that the system operates as a wide field amplitude and phase confocal system are presented.",

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AU - Sawyer, N. B E

AU - Morgan, S. P.

AU - Somekh, Michael Geoffrey

AU - See, C. W.

AU - Cao, X. F.

AU - Shekunov, B. Y.

AU - Astrakharchik, E.

PY - 2001/10/1

Y1 - 2001/10/1

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AB - We describe a wide field phase sensitive confocal microscope based on correlation between speckles. In this system, parallel optical phase stepping provides for the simultaneous capture of four interferograms using a single camera, giving the system the potential to operate at high speed. The interferograms are mapped to a common frame of reference, removing any relative distortion in the process, so that phase, amplitude, and interference efficiency images can be obtained. We use a new phase stepping algorithm that accounts for the unequal phase steps and unbalanced beam amplitudes that are a consequence of the optical arrangement. Experimental results to show that the system operates as a wide field amplitude and phase confocal system are presented.

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JF - Review of Scientific Instruments

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ER -

Wide field amplitude and phase confocal microscope with parallel phase stepping

Abstract

ASJC Scopus subject areas

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