Generation of nearly diffraction-free laser beams
- Cite this article as:
- Uehara, K. & Kikuchi, H. Appl. Phys. B (1989) 48: 125. doi:10.1007/BF00692137
Laser beams which behave like the so-called diffraction-free beams have been generated by an argon ion laser with a new type of cavity. They have almost the same intensity distributions and propagation characteristics as those predicted for the Bessel-Gauss beams which were introduced recently. Beams corresponding not only to the lowestorder but also to higher-order Bessel-Gauss beams have been obtained.