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Updated: Jul 6, 2026

A Guide to Structured Illumination TIRF Microscopy at High Speed with Multiple Colors

A Guide to Structured Illumination TIRF Microscopy at High Speed with Multiple Colors

Published on: May 30, 2016

Image formation in structured illumination wide-field fluorescence microscopy.

Dejan Karadaglić¹, Tony Wilson

¹University of Liverpool, School of Biological Sciences, Biosciences Building, Crown Street, Liverpool L69 7ZB, UK. dejan@liv.ac.uk

Micron (Oxford, England : 1993)

|March 14, 2008

Summary

Structured illumination wide-field fluorescence microscopy (SIWFFM) achieves optical sectioning comparable to confocal microscopy. Theoretical analysis confirms its transfer function behavior matches true confocal instruments, validated by experiments.

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Area of Science:

Optical microscopy
Fluorescence imaging
Biophysics

Background:

Confocal microscopy offers optical sectioning but can be slow.
Structured illumination wide-field fluorescence microscopy (SIWFFM) is a faster alternative.
Understanding SIWFFM's image formation is crucial for its application.

Purpose of the Study:

To theoretically analyze image formation in SIWFFM.
To compare the optical sectioning capabilities of SIWFFM with confocal microscopy.
To evaluate the transfer function behavior of SIWFFM.

Main Methods:

Theoretical modeling of image formation in SIWFFM.
Analysis of the optical transfer function (OTF).
Comparison with established confocal microscopy principles.

Main Results:

SIWFFM achieves optical sectioning strengths comparable to confocal microscopy.
The transfer function of SIWFFM closely resembles that of a confocal microscope.
Theoretical predictions were validated through experimental data.

Conclusions:

SIWFFM provides a viable alternative to confocal microscopy for optical sectioning.
The theoretical framework accurately describes SIWFFM performance.
SIWFFM offers comparable image quality and sectioning to confocal microscopy.