Simple Estimate of the Impact of M<sup>2</sup> and Strehl Ratio on the Effective Focusable Spot Size
oleh: Samuel Arba-Mosquera, Pascal Naubereit, Simas Sobutas
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2024-01-01 |
Deskripsi
A simple method (first-order approximation) to determine the impact of M<sup>2</sup> and the Strehl Ratio on the effective focusable spot size avoiding complex propagations of the beam wavefront is proposed. The model is based upon previous models and the definition of M<sup>2</sup> and the Strehl Ratio in a simple manner. This work provides qualitative and quantitative estimates for the interplay of M<sup>2</sup> and the Strehl Ratio on the effectively focusable spot size.