Laser energy absorption in gases - Research problems
Abstract
A review is presented of the current state of knowledge of laser energy absorption in gas engines, such as laser-powered rockets. Absorption for both continuous wave (CW) and pulsed engines are considered. For CW engines, absorption by laser-supported combustion (LSC) waves and by molecular resonance are possible mechanisms. For pulsed engines, laser-induced breakdown is a crucial element. As a result of this review, areas for further research are identified. They include the structure of seeded LSC waves, low temperature molecular absorbers, bleaching and multiphoton effects on molecular absorption, laser-induced breakdown in the visible/UV wavelength region, the stability of CW absorption processes, and possible mode-media interaction effects.
- Publication:
-
Orbit-Raising and Maneuvering Propulsion: Research Status and Needs
- Pub Date:
- October 1984
- Bibcode:
- 1984aiaa.conf...73K
- Keywords:
-
- Continuous Wave Lasers;
- Energy Absorption;
- Laser Outputs;
- Laser Plasma Interactions;
- Laser Propulsion;
- Rocket Engines;
- Absorptivity;
- Argon Plasma;
- Bremsstrahlung;
- Carbon Monoxide;
- Cesium Plasma;
- Gaseous Rocket Propellants;
- Hydrogen Plasma;
- Nitrogen Oxides;
- Thrust;
- Water;
- Lasers and Masers