Investigations of the Dynamics and Thermodynamics of the Mesosphere Lower Thermosphere and Upper Thermosphere at the Polar Regions with Optical Ground-Based Remote Sensing
Abstract
This second year of the grant has been a year of consolidation and staging for the continuing research. The advances made at the end of last year, in particular the proof-of-concept of solid state etalons, are now going through the process of testing and validating the findings made with the prototype devices. Thus far, all of the benchmarks of the electrooptic etalon behavior can be repeated, and we have also found-some new characteristics inherent to the device and its operation. For instance, in the non-linearity stage of measurements, it has been found that the reflective coatings are extremely sensitive to the presence of moisture in air. This effect seems to be enhanced by the existence of the electric fields (elrea 20 KV/cm) necessary for the operation of the electrooptic etalon. Operation in a vacuum, or in a controlled atmosphere are the obvious solutions, with the-latter being the preferred choice since it preserves the ideal of a lightweight field device. Recoating of the test etalon was necessary.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 14, 1992
- Accession Number
- ADA253228
Entities
People
- Giovanna E. Hernandez
- Kenneth C. Clark
Organizations
- University of Washington