Grating Simulator 4D
Interactive dot grid simulator
Only for Mac
$1.99
Mac
Here is an app that simulates the interference pattern projected onto a wall or screen from an LED laser shining through 4 diffraction gratings.
The laser interference pattern is similar to what would be produced by a Laser pointer’s beam passing through a diffraction grating – When you shine a laser pointer (green, 532nm wavelength) through a series of transmission diffraction gratings, you get a beautiful regular array of bright spots. The center spot is the zero-order (undiffracted beam), and the surrounding spots are the various diffraction orders. The symmetry and regularity of the pattern is characteristic of a diffraction grating pattern.
This simulation could be used as a demonstration setup for physics education – teaching about wave optics, interference and diffraction. It is a classic physics demonstration that beautifully illustrates the wave nature of light and the principles of diffraction.
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The developer, Mark Barclay, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
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The developer does not collect any data from this app.
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Information
- Seller
- Mark Barclay
- Size
- 235.9 KB
- Category
- Entertainment
- Compatibility
Requires macOS 26.0 or later.
- Mac
Requires macOS 26.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Mark Barclay
