Inventors:
Richard D. Suenram - Germantown MD
Francis J. Lovas - Bethesda MD
Jens U. Grabow - Kiel, DE
Marlin D. Harmony - Lawrence KS
Igor Leonov - Nizhny Novgorod, RU
Andre Zuban - Nizhny Novgorod, RU
Assignee:
The United States of America as respresented by the Secretary of Commerce - Washington DC
International Classification:
G01N 2200
Abstract:
A highly compact, portable, pulsed-molecular-beam Fabry-Perot cavity Fourier transform microwave spectrometer which incorporates ultra-fine Fabry-Perot mirror surface finishes has been developed for trace gas analysis. The mirrors, having a surface finish of less than or equal to 0. 25 microns rms, are coated with nickel and then with either gold or silver. In a further embodiment, one or more fixed-tuned Fabry-Perot cavities are incorporated within a single vacuum chamber to monitor one or more chemical species of interest.