Dynamics of the small-scale changes of metal optic surfaces induced by pulsed light
Abstract
A study is made of small-scale changes in the relief and absorptivity of mirror metal surfaces due to interaction with pulsed infrared irradiation. Several singularities are identified which are associated with the pulsed nature of the interaction and which cannot be explained by the surface temperature change alone. These include small-scale deformations observed even in the case of uniform distribution of the incident radiation intensity; an increase in deformation in excess of the increase attributable to heating only; and a change in the absorptivity of metal mirrors in excess of the theoretically predicted value.
- Publication:
-
Zhurnal Tekhnicheskoi Fiziki
- Pub Date:
- October 1991
- Bibcode:
- 1991ZhTFi..61..127L
- Keywords:
-
- Absorptivity;
- Infrared Radiation;
- Laser Target Interactions;
- Metal Surfaces;
- Mirrors;
- Surface Roughness Effects;
- Carbon Dioxide Lasers;
- Infrared Lasers;
- Pulsed Lasers;
- Radiant Flux Density;
- Lasers and Masers