Beam Combining by Phase Transition Nonlinear Media.
Abstract
Rocketdyne a division of Rockwell International, is conducting this research program to study, develop, and demonstrate the use of a gas or liquid near a phase transition as an efficient phase conjugation material. We expect to observe enhanced efficiencies of Degenerate Four Wave Mixing (DFWM) and Stimulated Brillouin Scattering (SBS) in liquids undergoing cavitation (also referred to as incipient or nucleate boiling or as superheated) or in gases undergoing supersaturated (supercooled) condensation. We will achieve these nonequilibrium conditions via the sudden pressure drop obtained by flowing the fluid through a nozzle. Since the change of state from liquid to gas can be made to occur more readily near the fluid's critical point as compared with other conditions, we are choosing to work with fluids whose critical points are near room temperature, thus simplifying problems of thermal control.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 04, 1988
- Accession Number
- ADA194116
Entities
People
- Pete Roullard
- Victor Wang