Related Experiment Video
Updated: Nov 24, 2025

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Spatial axial shearing common-path interferometer for natural light
Abstract:
A spatial axial shearing interferometer is proposed to obtain a mutual coherence function representing longitudinal spatial coherence of natural light. The modulation of the quadratic phase distribution displayed on a spatial light modulator generates a spatial axial shear without a radial one. Because the optical path lengths along the optical axis on the two paths are identical, the spatial axial shear can be greater than the coherence length derived by temporal coherence. Experimental results are given to confirm that the mutual coherence function obtained by the proposed interferometer has spatial distribution expected by the relation between coherence and diffraction formula.
More Related Videos
07:55High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
Published on: September 22, 2017
11:57Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM
Published on: December 1, 2016
Related Concept Videos
Interference and Diffraction
Phase Contrast and Differential Interference Contrast Microscopy
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
Light Acquisition
Shear on the Horizontal Face of a Beam Element
Total Internal Reflection Fluorescence Microscopy
Confocal Fluorescence Microscopy