Laser-surface impulse delivery in vacuum
Abstract
Available experimental measurements of impulse delivery to solid surfaces in vacuum by pulsed laser radiation are presented and compared to predictions of simple theoretical models. The trend of impulse coupling coefficient measurements with increasing laser fluence is explained by three regimes of the laser-material interaction process for vacuum or very low pressure conditions. The results indicate that impulsive coupling measurements can be simply scaled over a wide range of laser wavelengths, pulse lengths and focal spot sizes and coupling coefficients can be predicted with fair accuracy if the effective laser-surface absorption coefficient is known.
- Publication:
-
American Institute of Aeronautics and Astronautics Conference
- Pub Date:
- June 1982
- Bibcode:
- 1982aiaa.confQ....L
- Keywords:
-
- Coupling Coefficients;
- Mathematical Models;
- Momentum Transfer;
- Pulsed Lasers;
- Solid Surfaces;
- Vacuum;
- Absorptivity;
- Aluminum;
- Carbon;
- Laser Materials;
- Laser Modes;
- Laser Outputs;
- Laser Targets;
- Lasers and Masers