.png){kind=icon}
.png){kind=icon}
Return
Beyond Gaussians-diffraction of complex light : tutorial
.png){kind=icon}
PRE
AI
DOI：10.1364/josaa.587201.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Complex light can evolve radically as a function of propagation simply as a consequence of linear diffraction. Here, we characterize beam profiles in terms of their Dirichlet energy UD, which scales with the asymptotic rate of diffraction, i.e., the rate of expansion of the beam mode field radius. This metric is translation-invariant, structureinformed, and constant as a beam propagates through vacuum. The diffraction length of structured light scales as Ldf proportional to his =root UD. We provide examples with Laguerre-Gaussian vortex beams and fractal multi-beams using non-dimensional units, which are vital for self-consistent analyses of complex light. (c) 2026 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
Keywords:
BEAM-PROPAGATION
DIVERGENCE
SYSTEM
Journal
J
IF:
0
Papers:
121
Citations:
0
