Abstract
A recently proposed ray-based method for wave propagation is used to provide a meaningful criterion for the validity of rays in wave theory. This method assigns a Gaussian contribution to each ray in order to estimate the field. Such contributions are inherently flexible. By means of a simple example, it is shown that superior field estimates can result when the contributions are no longer forced to evolve like parabasal beamlets.
| Original language | English |
|---|---|
| Pages (from-to) | 728-739 |
| Number of pages | 12 |
| Journal | Optics Express |
| Volume | 10 |
| Issue number | 16 |
| Publication status | Published - 2002 |
| Externally published | Yes |