Scattering pattern in ruby lasers
Abstract
Parallel line fringes were observed in a ruby laser rod when it was illuminated by an expanded He-Ne laser. Similar fringes known as filaments were also observed in the ruby laser beam. This phenomenon is probably due to the Rayleigh scattering produced by the plane defect of lineage in the ruby crystal. Besides, we observed that, in the far-field view, the fringes greatly extend along the direction perpendicular to the optic axis and the extended length is closely correlated with its lasing performance. We also found a simple method to record the laser pattern from a giant pulse ruby laser by inserting a Polaroid film in the laser beam to receive its destructive energy.
- Publication:
-
Optica Acta
- Pub Date:
- October 1974
- Bibcode:
- 1974AcOpt..21..783W
- Keywords:
-
- Diffraction Patterns;
- Laser Outputs;
- Light Scattering;
- Rayleigh Scattering;
- Ruby Lasers;
- Far Fields;
- Helium-Neon Lasers;
- Laser Modes;
- Photographic Film;
- Pulsed Lasers;
- Lasers and Masers