INVESTIGATION OF HIGH FREQUENCY LIMITATIONS IN MILLIMETER WAVE GENERATORS
Abstract
The study continued of the emission of two-level molecules in a sinusoidally driven resonant cavity. The theory was extended to allow analysis of the spectral distribution of induced and spontaneous emission in a cavity and to study the steady-state condition when a molecular beam traverses the cavity. It is shown that the induced emission energy, when averaged over a reasonable time, depends only on the energy spectrum of the driving field. Expressions are obtained for the spectral distribution of induced, spontaneous, and thermally-induced emission. The amplification by the molecular beam of the driving field (signal) and of the thermal and spontaneous emission energies (noise) is studied. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1961
- Accession Number
- AD0268714
Entities
People
- Julian Schwinger