Home | Survey | Topics | Index | References | Dictionary | Contributing | Gallery | Community
| DFM improved | Prev topic | Next topic |
Seet et al (2005) describe preliminary results of mapping positions of scattering centers of given size in an optically thin tissue phantom specimen (polystyrene latex spheres 2 and 5 µm in a polyvinylalcohol matrix) obtained with an improved version of the digital Fourier microscopy (DFM).
The instrument they used utilizes a 12 bit CCD-camera positioned in the Fourier plane of the optical system of an optical microscope. The camera records a hologram of the specimen, i.e. an image that is produced by interference of light scattered by a thin specimen and of a reference light wave emitted by a point source (a single-mode optical fiber) co-planar with the specimen.
By processing the hologram with a digital Fourier filter and restoring an image of the specimen, Seet et al were able to produce significantly enhanced images of components of the specimen selected on the basis of the particle size.
| CITATION: Jonasz M. 2006. DFM improved (www.tpdsci.com/Tpc/OSIDFM2.php). In: Top. Part. Disp. Sci. (www.tpdsci.com). |
HISTORY: Published: 13-Jan-2006 Modified: 21-Jun-2006 Peer-reviewed: PENDING |
| Copyright 2005-2008 MJC Optical Technology. All rights reserved. | Terms of use | Menu |