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The image was acquired using electron holography in a field emission gun transmission electron microscope.
The black lines show the magnetic field lines in the sample, measured using electron holography.
In 1995 Rob incorporated Spatial Imaging Ltd. to develop and commercialize digital holography and to develop new and innovative holographic technologies.
A second research interest since 1988 has been in Optical Information Processing, specifically real-time holography using photorefractive materials.
The fine white lines are the magnetic field lines in the cell, which were measured using off-axis electron holography.