Related Experiment Video
Updated: Jun 12, 2026

Super-Resolution Microscopy of the Synaptonemal Complex Within the Caenorhabditis elegans Germline
Published on: September 13, 2022
Image enhancement in ultramicroscopy by improved laser light sheets
Saiedeh Saghafi1, Klaus Becker, Nina Jährling
1Vienna University of Technology, FKE, Dept. of Bioelectronics, Floragasse 7, 1040 Vienna, Austria. saiedeh.saghafi@tuwien.ac.at
Abstract:
In the majority of implementations of light sheet microscopy, such as ultramicroscopy, the laser beam illuminating the specimen is truncated by a slit aperture before it is focused to a light sheet by a single cylindrical lens. A light sheet generated in this way can be made very thin near to the focal point, but unfortunately its Rayleigh range is severely limited. This problem can be partially solved by using a smaller slit aperture. However, this also causes a major loss in power, a severe broadening of the beam waist, and thus a significant loss of resolution along the detection axis. We developed improved light-sheet-generation optics, which provide longer Raleigh ranges, whilst retaining beam waists comparable to our standard system with one cylindrical lens. Using the modified system we achieved a marked improvement in the resolution of ultramicroscopy reconstructions of representative biological specimens.
Related Concept Videos
Super-resolution Fluorescence Microscopy
Confocal Fluorescence Microscopy
Imaging Biological Samples with Optical Microscopy
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Three-Dimensional Microscopy in Microbiology

