Comparison of two-and three-beam interference pattern generation in structured illumination microscopy
Photonics, ISSN: 2304-6732, Vol: 8, Issue: 12
2021
- 5Citations
- 11Captures
- 1Mentions
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Photonics, Vol. 8, Pages 526: Comparison of Two- and Three-Beam Interference Pattern Generation in Structured Illumination Microscopy
Photonics, Vol. 8, Pages 526: Comparison of Two- and Three-Beam Interference Pattern Generation in Structured Illumination Microscopy Photonics doi: 10.3390/photonics8120526 Authors: Jiuling Liao Lina Liu
Article Description
Structured illumination microscopy (SIM) provides wide-field optical sectioning in the focal plane by modulating the imaging information using fringe pattern illumination. For generat-ing the fringe pattern illumination, a digital micro-mirror device (DMD) is commonly used due to its flexibility and fast refresh rate. However, the benefit of different pattern generation, for example, the two-beam interference mode and the three-beam interference mode, has not been clearly inves-tigated. In this study, we systematically analyze the optical sectioning provided by the two-beam inference mode and the three-beam interference mode of DMD. The theoretical analysis and imaging results show that the two-beam interference mode is suitable for fast imaging of the superficial dynamic target due to reduced number of phase shifts needed to form the image, and the three-beam interference mode is ideal for imaging three-dimensional volume due to its superior optical sectioning by the improved modulation of the illumination patterns. These results, we believe, will provide better guidance for the use of DMD for SIM imaging and also for the choice of beam patterns in SIM application in the future.
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