A structured beam carries a phase winding
Adjust the controls, inspect the calculated response and use the reading links to place the model in its physical context.
Interactive model: A structured beam carries a phase winding. Enable JavaScript to adjust its controls.
u ∝ r^|ℓ| e⁻ʳ² eⁱℓφ
Transverse p = 0 Laguerre–Gaussian-like mode in dimensionless waist coordinates. Opacity encodes normalized intensity; cyclic color encodes phase. Paraxial pure modes have orbital angular momentum ℓℏ per photon.
What this model assumes
Transverse p = 0 Laguerre–Gaussian-like mode in dimensionless waist coordinates. Opacity encodes normalized intensity; cyclic color encodes phase. Paraxial pure modes have orbital angular momentum ℓℏ per photon.
How to explore it
Begin with the default values. Change one control at a time and watch both the graph and the readouts. Then reset the model and change another parameter. This isolates which input produces the effect you are seeing.
The plotted values are generated from the displayed equation. Downloading the calculated data lets you inspect the numerical series or compare it with a calculation of your own. The data are synthetic model outputs, not observations from an apparatus.
Before carrying a prediction into an experiment, match the model’s assumptions to the actual system: the relevant degrees of freedom, boundary conditions, noise, losses and measurement convention. The linked articles explain which comparison is physically meaningful.
Calculated model image. Transverse p = 0 Laguerre–Gaussian-like mode in dimensionless waist coordinates. Opacity encodes normalized intensity; cyclic color encodes phase. Paraxial pure modes have orbital angular momentum ℓℏ per photon. The fixed figure uses charge ℓ = 1.
Download SVG ↓Twisting, torsion, and structured waves
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