Spot size and divergence for Hermite Gaussian beams of any order
Abstract
The usual definition of spot size is modified to account for the higherorder Hermite Gaussian beams, and the resulting formulation is used to study the effect of the beam order on beam divergence. It is found that while the lowestorder beam produces a circular or elliptical spot of light, the higherorder beams produce a pattern of such spots over an area roughly bounded by a rectangle. The extension of the concept of spot size from lowest to higherorder beams is most directly obtained by defining this rectangular illuminated area as the illuminated spot.
 Publication:

Applied Optics
 Pub Date:
 April 1980
 DOI:
 10.1364/AO.19.001027
 Bibcode:
 1980ApOpt..19.1027C
 Keywords:

 Gauss Equation;
 Hermitian Polynomial;
 Laser Applications;
 Light Beams;
 Divergence;
 ElectroOptics;
 Fourier Transformation;
 Lasers and Masers;
 BEAMS